FMCG ANDROID APP UPDATE (KOTLIN)

We created this App for taking FMCG orders for out salesman . We selling some Grocery items for Grocery stores and Medical stores . Salesman visit grocery stores and book orders . So Instead of taking order and write manually in Notebook we providing this App to book order so that we can bill the customers by uploading ordered data to Main software in office . So this App reduce time because after writing the items in notebook salesman need to enter the order in main computer manually . Currently we using 1.28 Version that works fine . But I need Three Major updates for This Mobile App and other small updates                  Some Info and work about this app       This is FMCG order and collection app that works offline based on Kotlin 1.     We taking input data as CSV from Main software in computer and paste it manually in sync folder in google firebase storage so that  this APP will get data through sync 2.     Now all the  data such as ( Item name , price , MRP and Customer name from csv file moved to  app so that we can book order for multiple customers . 3.     After Completing Order we should give Backup so that Ordered data CSV files move to Google firebase storage in Backupfolder. 4.     After We copy the data manually from Firebase and upload it in the MAin computer UPDATE NEED FOR THIS APP     I Need three Major updates and some minor updates 1.     EDITING FINISHED ORDERS BEFORE BACKUP .                            Version 1.28 does not have Editing option after complete its ordering . But Version 1.30 having Editing option but it was incompleted. I need to App to work as stable 1.28 version with Editing option . 2.     CASH/BANK COLLECTION WITH DENOMINATION                           This also created little but incomplete program . Look into program code and alter for needful or program as new  .   3.     CREATING PENDING ORDERS                                                      To write program .            Version 1.28 that attached is a Stable version and After in that program We having Order Editing programs in 1.30 version but we need some changes in it . Cash collection also done but need to program it .  I handover the project to a Developer. AND due to some personal issues previous developer cant complete the project . So who interested in the Project can discuss . The project updates need to be completed within 1 month.