Php pdf database save server jobs

I'm looking for a skilled graphic designer to create a printable PDF pizza menu for me. The menu should include 16-20 different pizza types, and should be visually appealing, easy to read and professional looking.

We're a large agency in need of a Virtual Assistant, ideally from The Philippines, with experience in social media management. We need someone who can manage our Facebook Fan Page. Key Responsibilities: - Oversee and manage our Facebook fans - Create engaging content to keep our fans interested - Respond...Oversee and manage our Facebook fans - Create engaging content to keep our fans interested - Respond to comments and messages in a timely manner Ideal Candidate: - Prior experience as a Virtual Assistant - Proven track record in managing social media - Excellent communication skills - Based in The Philippines is a plus Please send me a message if you're interested and I will provide you with a PDF that details how this works. We need someone to start ASAP. Thank you ...

My eCommerce site, powered by Magento 2, is experiencing random CPU spikes throughout the day. This issue seems to be primarily affecting the product pages and is likely due to PHP jobs. The shop was recently upgraded and no new extensions or plugins have been added since. I need an experienced Magento 2 and PHP developer to: - Analyze the website's performance and pinpoint the cause of the CPU usage spikes. - Identify any potential issues with the recent upgrade. - Optimize the site for better performance, especially on product pages. Ideal skills for this job include: - Deep understanding of Magento 2 and PHP. - Experience in eCommerce site optimization. - Ability to troubleshoot and fix complex technical issues.

More details: What type of font style should the signature resemble? similar to the file but VERTICAL SIGNATURE What level of detail should the signature have? Moderate complexity Will the design need any additional embellishments or elements? No, just the signature The final design should be provided in PDF format. The final design should be presented on a single page in the PDF file. The signature should be oriented vertically on the PVC sheet.

I'm looking for a skilled video producer to create a 2D animated product demonstration video for my company's website. Key Details: - The animation style should be 2D. - I have a set of branding ...product demonstration video for my company's website. Key Details: - The animation style should be 2D. - I have a set of branding elements (logos, color schemes) that need to be incorporated into the video. - Clear instructions will be provided in a PDF format. The ideal freelancer for this project should have: - Proven experience in producing 2D animated videos, specifically for product demonstrations. - Ability to seamlessly integrate provided branding elements into the video. - Strong communication skills to ensure understanding of the PDF instructions. I l...

I'm looking for a skilled Python developer with experience in Langchain, Streamlit, and LLMs like ChatGPT or AWS Bedrock. The project involves: - Ingesting 15-20 PDF files into a ChromaDB using Langchain. - Creating a chatbot that can only respond using information extracted from the PDFs in the vector database. - Designing a user interface with a text input box using the Streamlit library. - Ensuring the chatbot only provides text replies. -Chatbot should also refrain from answering international sensitive topic. The ideal candidate should have strong Python skills, experience with PDF data ingestion, and a good understanding of creating chatbots using LLMs. Familiarity with Streamlit for UI development is also a must.

I'm looking for a seasoned PHP and Database expert to modify the database functionality of my small management system. This will primarily involve altering current tables and columns within the database schema. Ideal Skills and Experience: - Proficient in PHP - Extensive experience with database management and schema modifications - Ability to troubleshoot and optimize database functionality - Familiarity with user interface considerations when modifying database interactions.

...Solidity (Peer Matching with conditions and simple formula for final transaction using Solidity along with Consensus Prof of Concept (Transaction Verification) using dummy filter (highest score user to pick) Please Note - 1) I don't need any web page development. All are backend programs and need to save the results in MYSQL database. 2) Input data will be provided through excel sheet which need to be uploaded into MySQL database to further process. 3) I need 10 demo users (5 sellers and 5 buyers) to participate in this project which is having their own user credentials. 4) This implementation is STRICTLY on my local PC (or customer local PC) only, as this project is just for PoC (Prof of Concept) purpose. 5) I nee...

Management server work

1. I need a freelancer to convert an image into a PDF word document. Needs to be an editable document.

I'm seeking a professional to configure an email server on RHEL 9. This server will be integral for my Robot Framework automation scripts, facilitating both the sending and receiving of emails, as well as validating the content of these emails, including various types of attachments. Key Responsibilities: 1. Robot Framework Integration - Seamlessly integrate the email server with Robot Framework on a Windows VM. - Ensure the server supports automation scripts for sending and receiving emails for validation purposes. 2. Email Content Validation - Enable the parsing and validation of email bodies and attachments within Robot Framework. - Attachments will include XML files, GZ files containing JSON, and ZIP files containing text files. - Ensur...

I need an experienced server administrator and DevOps engineer to configure my Ubuntu VPS for a specific version of Laravel. The project includes: - Installation and configuration of Laravel - Setting up MySQL, Redis, and PHP-FPM - Creating a CI/CD pipeline from GitHub to my VPS using Github actions and Secrets - Ensuring the server is ready for Crons The ideal candidate should have: - Advanced skills in PHP, Laravel, MySQL, Redis, and PHP-FPM - Proficiency in setting up and managing Ubuntu servers - Extensive experience with Github actions and Secrets for CI/CD - Previous experience with setting up servers for Laravel applications - Knowledge of configuring Crons on a server Please ensure to include relevant examples of your previous work when ...

...spaCy NER) --- ### **Defensible Differentiation** ✅ **Recursive Data Validation** - Cross-checks APIs against scraped data (e.g., "Crunchbase says $10M funding but news mentions layoffs → flag discrepancy") ✅ **Anti-Commodity Tactics** - Embeds user-specific battlecard logic that competitors can’t reverse-engineer ✅ **Boardroom-to-Browser Ready** - Outputs work for both M&A teams (PDF battlecards) and SDRs (Salesforce-ready CSV) --- ### **Example Run** **Input:** `` with 50 SaaS companies **Automated Outputs:** 1. 12 Tier 1 battlecards with investor warm intro strategies 2. 28 Tier 2 battlecards with technical integration pitches 3. 10 Tier 3 companies flagged for "awaiting next funding round" 4. Compliance-pro...

...management, financial tracking, and automated calculations, ensuring efficiency and accuracy in every spreadsheet. Whether it’s a salary sheet, expense tracker, or grade report, I create smart, structured, and user-friendly Excel files tailored to your needs. ? Why Choose Me? ✔ Well-Organized & Error-Free Sheets – Easy to navigate, structured, and clean layouts ✔ Automated Formulas & Functions – Save time with calculations that work instantly ✔ Financial & Payroll Management – Salary sheets, budgeting, and billing trackers ✔ Data Visualization & Reports – Interactive charts and dashboards for better insights ✔ Custom Excel Templates – Personalized solutions for your business or projects ? My Expertise ? ? Bills & Expense T...

My Flutter app is currently prompting to select a Google account every time I attempt to open a PDF from Google Drive. This is a minor issue, and I'm looking for a freelancer who can fix this promptly. Key Requirements: - A thorough understanding of Flutter, specifically the stable version. - Experience with the Google Sign-In library. - Ability to troubleshoot and resolve issues efficiently. Please note, this is a small task and I have set a fixed amount for this requirement. Bids are welcome only from freelancers who are comfortable with this.

As discussed in the chat, I would like to display the 5 last blog post headlines and their publish dates on the front page of https://winfindr.com. The blog posts are in a WordPress installation at This needs to be done without loading WordPress from the front page, instead you should implement this for example by directly reading the WP's database and fetching the data from there.

I need a proficient AutoCAD designer who can convert PDF files into mechanical drawings of machine parts. The final CAD files should be in DWG format. Ideal Candidates Should Have: - Extensive experience in creating mechanical drawings - Proficiency in AutoCAD - Previous work with machine parts - Ability to deliver in DWG format

I need a unique, modern-style logo designed using CorelDraw. The logo will primarily be used on my website, so it needs to be web-friendly and aesthetically appealing for online viewers. Key Requirements: - The logo should be a combination of both text and a symbol/icon. - The designer must be proficient in CorelDraw. -...website, so it needs to be web-friendly and aesthetically appealing for online viewers. Key Requirements: - The logo should be a combination of both text and a symbol/icon. - The designer must be proficient in CorelDraw. - Previous portfolio of modern style logos is a plus. Skills Needed: - CorelDraw - Graphic Design - Brand Development Concepts : 3 Different Formats : AI, EPS, CDR, PNG, JPEG, PDF Please provide examples of your past work that align with thi...

I'm looking to develop a web application and an Android application that can help users get their flight and hotel itineraries in PDF format. Key Requirements: - The web application should have the ability to search flights and hotels. - It should support user account management. - It must generate and allow downloading of PDF itineraries. Design: - Both the web and Android applications should adopt a corporate and professional design style. Language Support: - The applications do not need to support multiple languages. Ideal Skills and Experience: - Proficiency in web and Android application development. - Experience with user account management systems. - Skills in implementing search functionalities. - Ability to create a corporate and professional design. - Prev...

...SITE WordPress developer to diagnose and convert multi-site setup to Multiple WordPress Instances with a Single Database. :: MUST HAVE Extensive experience with WordPress, particularly multi-site setups +++ see attached and visit USING TWO THEMES - Main - Porto Theme - Subdomain - HiStudy Theme - DELIVERABLE: a. Multisite Plugins work in domain and subdomain without issues. b. ONE Shared database for all products, events, courses on domain and subdomain c. ONE Shared database for customer data and purchases so customer account in main syncs with subdomain's customer account. d. LIMIT THEME

We Need Laravel Developer to develop our project in 30 days. Project Details as attached pdf

...have 1. Static IP on MongoDB Server with 8 CPU & 16 GB RAM ( Server A ) I want to load balancing if my server goes more than 40% start another server ( Server B ) if the load is below 40% new started server ( Server B ) should automatically shut down. My Primary database must be stored and save without any data loss on ( Server A - IP and other things should not change) I'm looking for a skilled AWS expert to set up auto-scaling and load balancing for my MongoDB database server on EC2. Key Requirements: - Extensive experience with AWS, particularly EC2, Auto-Scaling Groups, and Elastic Load Balancing (ELB). - Proficient in managing and optimizing MongoDB deployments. - Proven track record...

I'm seeking a skilled PHP developer who can seamlessly publish real-time Excel data from my PC or OneDrive onto my WordPress website. This Excel file, which contains some external links, needs to be displayed in a customized table format. Key Requirements: - Expertise in PHP and WordPress - Proficient in handling Excel data and creating table formats - Capable of implementing real-time data updates - Experience with integrating external links into Excel Ideal Candidate: - A PHP developer with a strong background in WordPress and real-time data publishing - Able to customize Excel data into a table format - Quick and efficient in delivering high-quality work

I need an expert who can help me host my PHP application on my XAMPP setup. The source code for two projects is ready. What I need: - Assistance in hosting the PHP app on my existing XAMPP setup - Explanation of the hosting process, so I can understand for future projects Key Requirements: - Proficient in PHP and XAMPP - Familiar with Windows operating system - Able to explain technical processes in a clear and understandable way - Experience in hosting PHP applications Please note, the only specific PHP extension required for these projects is MySQLi.

I'm looking for assistance converting a PDF document to a Word document. It's crucial that the converted document maintains the original formatting exactly. Ideal Skills and Experience: - Proficiency in PDF conversion - Excellent attention to detail - Strong knowledge of Microsoft Word - Ability to replicate complex formatting

I'm looking for an experienced developer who can automate the process of downloading our quotes and estimates from Harvestapp via Zapier and transferring them to our SharePoint folders. Key Requirements: - The quotes/estimates should be converted to PDF format before being uploaded to SharePoint. - The files need to be organized by project within SharePoint. - Each file should adhere to a specific naming convention: it should include the project name and quote number. - The quotes/estimates are to be moved to our specific job subfolder in sharepoint Ideal Skills: - Proven experience with Zapier and Harvestapp. - Strong understanding of SharePoint. - Proficiency in automation and scripting. - Detail-oriented, able to follow specific instructions for file formatting and organi...

I'm looking for a seasoned PHP Laravel developer who can maintain and modify our VPS server. The developer should have profound knowledge of the complete PHP Laravel framework and be capable of managing the server independently. Key Responsibilities: - Code maintenance and updates: Regularly review the codebase for bugs and inefficiencies, implementing necessary updates to improve performance and ensure smooth operation. - Server management and optimization: Oversee the performance of our VPS, making necessary adjustments to optimize speed and efficiency. - Implementing new features: Develop and integrate new features based on our evolving needs and specifications. Security Measures: - Regular security updates and patches: Ensure the server ...

I have an old logo in PNG format that I need redrawn to a clear resolution. Key Requirements: - Redraw the logo in high resolution - Deliver in specified sizes: 500x500px, 1080x1080px - Provide in various formats: JPEG, PDF, PNG, PSD Ideal Skills and Experience: - Proficient in graphic design software - Experience with logo redesign and format delivery - Attention to detail for exact design replication

...if you have any. then I expect that you will adjust your bid, NOT ask how much I want to pay. I'm looking for a proficient PHP/MySQL developer to complete a script for me. The script will include two cascading drop-down menus based on a report category and subcategory. Once both are selected, a user can select pictures or take a picture with the camera. Requirements include: - Resizing all files to under 300kb - Sending the resized images, alongside the chosen category/subcategory, to a custom GPT model - Handling the returned text from GPT, allowing the user to edit this text before submission - After user finalizes the text, submitting the report to a database table and saving the images to a predesignated folder I've almost completed this script, aside f...

I need a developer who can host my project on my server. I have my VPS server on actually one of my developer was trying to host but he is not able to host there he did all the setup there like DNS, create subdomain and all...

Request for Visual Identity Design for the "Luqia" App on Figma and Adobe with Portfolio Submission I am looking for a professional designer...and Adobe ✅ Supporting Visual Elements & Patterns – in Figma and Adobe ✅ Custom Icons – in Figma and Adobe ✅ Basic UI Mockups – in Figma ✅ Social Media Templates – in Adobe Photoshop & Illustrator ✅ Comprehensive Design System – in Figma ✅ Brand Guidelines Document – in Figma and Adobe PDF ? Additional Requirements: ? Provide previous work samples related to visual identity, UI/UX, or other relevant projects. ? The final deliverables must be well-organized and fully editable in Figma and Adobe (AI, PSD, PDF). ? The visual identity should reflect the app’s values: simplicity,...

This is a project to design an Adobe XD file. You can use the PDF and PPT file as a reference to create your design. Pls read below notices carefully 1. I will provide another Adobe XD file as a design sample. You can use this and modify it to get the job done quickly. 2. The PDF file has Korean and English parts, but the content is the same, so you can refer to the English part. 3. if you make a low offer and ask me to negotiate the price again, I will not negotiate. and will Block 4. even if I make an award, if you don't accept within 1 hour, I will cancel it. Sometimes developers will develop without accepting to maintain their reputation. If freelancer try to develop, and it fails, the freelancer can go away, but I lose time. so must be accept wi...

*Colour Game Requirements admin pannel* (user information) register list all withdraw doposit list recharge list account edit,block,unblock,delete,user trade ban tranjaction history,delete and add account balance add,debit,notice 8. users oder informations 9. user i...RECORD SAME WITHDEAWAL RECORD TO BALANCE MY PROMOTIONS CODE,MY PROMOTION LINK,COPY LINK ,RECHARGE,WITHDRAWAL,TRANSACTIONS CARD IN SIDE NAME IFSC CODE BANK NAME BANK ACCOUNT NO MOBILE NO EMAIL ID UPI ID CONTINUE TO ADD ADDRESS SECURITY IN SIDE RESET PASSWORD MOBILE NO VERIFICATION CODE (OTP) NEW PASSWORD CONTINUE TO SAVE DOWNLOAD &SUGGESTIONS

*Colour Game Requirements admin pannel* (user information) register list all withdraw doposit list recharge list account edit,block,unblock,delete,user trade ban tranjaction history,delete and add account balance add,debit,notice 8. users oder informations 9. user i...RECORD SAME WITHDEAWAL RECORD TO BALANCE MY PROMOTIONS CODE,MY PROMOTION LINK,COPY LINK ,RECHARGE,WITHDRAWAL,TRANSACTIONS CARD IN SIDE NAME IFSC CODE BANK NAME BANK ACCOUNT NO MOBILE NO EMAIL ID UPI ID CONTINUE TO ADD ADDRESS SECURITY IN SIDE RESET PASSWORD MOBILE NO VERIFICATION CODE (OTP) NEW PASSWORD CONTINUE TO SAVE DOWNLOAD &SUGGESTIONS

...AI, MidJourney, etc.) to maintain a uniform style across all worksheets. The trial will start with 2 worksheets before proceeding to all 20 worksheets. This task is simple, and we will not accept absurd quotes or unnecessary upsells. ? Budget: $100 AUD for all 20 worksheets (5 AUD per worksheet). ? Deadline: To be discussed, but we expect efficient and timely delivery. ? File Format: Deliver in PDF and editable format (Word, Canva, etc.). ? How to Apply: Send a brief proposal explaining your experience with formatting & AI-generated images. Show 1-2 examples of your previous document formatting or design work (if available). Confirm you agree to the trial of 2 worksheets before moving forward. We need clear communication and a fast, reliable, and efficient freelancer. If yo...

...Screenshot Capture: Monitor machine screens during gameplay videos. Capture screenshots immediately after the reels come to a complete stop (idle state), ensuring new and unique screens are captured after each spin. Avoid taking screenshots while reels are in motion or incomplete states. Image Organization: Label all screenshots accurately with identification details such as video ID and channel name. Save and organize screenshots into a structured folder system for easy retrieval. Adherence to Guidelines: Follow established procedures to maintain consistency across screenshots for multiple machine types. Ensure that all reel symbols, graphics, and screen details are clear and fully visible in the captured images. File Management: Review each screenshot to ensure quality, cla...

I'm looking for an expert in Power BI and SQL Server who can assist with data integration and transformation. Key Responsibilities: - Integrate various data sources into SQL Server - Transform and prepare data for analysis Ideal Skills: - Proficiency in Power BI and SQL Server - Experience in data integration and transformation - Strong analytical skills Please note that specific data sources and transformation tasks may be discussed further. Your ability to handle and manipulate complex datasets will be crucial for success in this project.

...existing Ubuntu server. The server is already running nginx and php-fpm perfectly. Key Requirements: - Ensure there are no conflicts with the existing functional nginx system for other sites on the server. - Set up openmaint in a way that allows for on-the-go edits, without using Docker. - Use Tomcat for openmaint installation. - Work should be done via Anydesk, not SSH, for security and clarity reasons. The server currently has: - No version control system for the openmaint folder. - Java 11 as the installed Java Development Kit (JDK). GeoServer does not need any specific custom configurations, a default setup is fine. Ideal Skills: - Proficient in Ubuntu server management. - Experience with openmaint, GeoServer, and BIMSERVER installatio...

I'm looking for an expert in Power BI and SQL Server who can assist with data integration and transformation. Key Responsibilities: - Integrate various data sources into SQL Server - Transform and prepare data for analysis Ideal Skills: - Proficiency in Power BI and SQL Server - Experience in data integration and transformation - Strong analytical skills Please note that specific data sources and transformation tasks may be discussed further. Your ability to handle and manipulate complex datasets will be crucial for success in this project.

I'm looking for an expert in Power BI and SQL Server who can assist with data integration and transformation. Key Responsibilities: - Integrate various data sources into SQL Server - Transform and prepare data for analysis Ideal Skills: - Proficiency in Power BI and SQL Server - Experience in data integration and transformation - Strong analytical skills Please note that specific data sources and transformation tasks may be discussed further. Your ability to handle and manipulate complex datasets will be crucial for success in this project.

I'm looking for a designer to update my logo. The project entails: - Modifying the existing logo to incorporate a new motto I have ready. - Providing the updated logo in a high-resolution JPEG format and PDF suitable for printing and other applications. Ideal candidates will have experience in graphic design and logo creation, with a strong portfolio of similar projects. Prompt communication and attention to detail are crucial. Please only apply if you can deliver a professional quality result without over-selling and lack listening skills.

I'm looking for a creative illustrator for a kids' book filled with growth mindset quotes. The style should be cartoonish, appealing to children. The book will feature both animals and humans as characters. Key Responsibilities: - Create engaging, cartoonish-style illustrations that resonate with a young audience - Illustrate a variety of characters, pri...motivational messages through your artwork Ideal Skills: - Strong background in cartoon-style illustration - Experience illustrating for children's books - Ability to convey complex ideas simply and visually - Creativity in designing characters and scenes Please provide samples of your previous work in the same genre. Here is an example!!!&&&

I need a professional and clean layout for our community newsletter, sized at 11 x 17 TABLOID. We usually publish an 8-page newsletter but want the option to extend it to 12 pages if necessary. I am looki...and clean layout for our community newsletter, sized at 11 x 17 TABLOID. We usually publish an 8-page newsletter but want the option to extend it to 12 pages if necessary. I am looking for bids that include: - One price for designing an 8-page edition. - Another price if we decide to extend it to 12 pages. **Key Requirements:** - Design prioritizing content (news stories, ads, flyers) - Provide a PDF proof for proofreading and corrections - Familiarity with creating print-ready PDFs - Strong graphic design skills **Budget:** Please provide your pricing per edition (8 pages and ...

...Real-time traffic adjustments to reduce delays. • Supports multi-passenger trips (patients traveling in the same direction). ✅ Driver Monitoring & Tracking • Live GPS tracking for active drivers. • View driver workload & trip acceptance rates. • Send manual trip reassignment notifications if needed. ✅ Medicaid Billing Integration • Generates Medicaid-compliant trip logs for reimbursement. • PDF/Excel reports for billing & claims submission. ✅ Driver Pay & Earnings Tracking • Implements the hybrid pay model. • Auto-calculates weekly earnings & trip incentives. • Generates payment reports for payroll processing. ✅ Analytics Dashboard & Reporting • Tracks trip volume, revenue, and efficiency metr...

...store specializing in crystals, stones, and gems, and we are looking for an exclusive and attractive design for our grand opening invitation. This contest is to design an invitation that can be printed, used on WhatsApp, and displayed during the live event of the inauguration. The invitation must include a QR code linking to a registration form, where attendees can sign up (to be added to our database) and enter a giveaway for a surprise crystal piece. The form will also encourage participants to follow us on social media. We want an elegant, harmonious, and well-structured invitation that reflects the beauty and charm of crystals. If you have great design and marketing skills with attention to detail, we look forward to your proposal! 1. Contest Information - Contest Ti...

I'm in need of a freelancer who can edit 1-5 dates on my PDF document. The dates need to be reformatted to the DD/MM/YYYY structure. Ideal Skills: - Proficient in PDF editing - Attention to detail - Able to follow specific formatting instructions Please note that the quality of your work is crucial, as these edited dates need to appear seamless and professional.

I have three PHP-based websites that need to be restored from backup and transferred to another server. The restoration must ensure that the sites are malware-free and function properly. Key Tasks: Websites currently do not work. - Restore the websites to their most current version - Ensure the most current release of PHP/HTML is used - Remove malware, if any, and ensure the sites are secure Test and make sure the sites are working properly. - Transfer the sites to another server Host Gator partially restored the websites from very old backups and did a bad job. The sites still do not work. Host Gator claims that the current versions of the sites are infected with malware and do not use the most current release of PHP/HTML. Host Gator has not been the...

Creating a freelance account opens up numerous opportunities for individuals seeking flexibility and autonomy in their work. Whether you're a writer, designer, developer, or any other type of professional, a freelance account helps you connect with clients, manage your projects, and build a successful career. A freelance account is typically established on a platform that connects freelancers with people or companies in need of specific services. These platforms serve as intermediaries, making it easier for both freelancers and clients to find each other. Examples of such platforms include Upwork, Fiverr, Freelancer, and others. By creating a profile on these sites, you gain access to a global marketplace where clients post job opportunities, and freelancers can bid on or apply for t...

...Powerful, and Grounded. 5. Productivity • Primary Color: Electric Purple • Secondary Colors: White, Silver • Mood: Motivational, Creative, and Limitless. Deliverables 1. Individual E-Book Covers: • Each e-book listed below requires a unique design based on its category. • The design must include the title and relevant subtle design elements. 2. Format Requirements: • High-resolution JPEG and PDF versions for digital use. • Editable source files (e.g., AI or PSD) for future updates. E-Books to Be Designed Branding 1. Reputation Revolution 2. The Art of Storytelling 3. Build a Positive Digital Presence 4. Personal Branding Expertise 5. Building a Powerful Brand Digital Marketing 1. Google Search Ads Unlocked 2. Lifecycle Email...

...invoices as per the specifications outlined in the provided Figma file and PDF document. - Checking the PDF document for the overall project explanation and the flow design provided in Figma. - Implementing the email design as specified in the Figma file. - Providing insights on potential SMS providers, as we haven't found one yet. The Figma link for reference is: Please refer to the Figma file and the PDF document for further details about the specific information to be included in each invoice. Ideal skills and experience for this job include: - Fullstack development proficiency - Familiarity with Figma and PDF documents - Experience in invoice system development - Knowledge of SMS service