Hello: Our telecommunications company works with SAP system to help manage the entire process of purchasing, payments, fixed assets, projects, inventory and accounting. The company has other non-SAP systems to manage the customers and the entire process of billing and collection services. At the end of the month, these systems generate grouped accounting information that is sent directly to the accounting General Ledger. The undesirable consequences of this activity are that: accounting is done manually at the level of the General Ledger, many GL accounts and document classes were created to simulate consolidated customers, and finally, reconciliation of amounts are very difficult with differences accumulated monthly. We think that incorporating the module of SAP FI-AR we can solve those consequences, but we do not need to incorporate individual customer or individual invoices because non-SAP systems already do. Do you have any experience or documentation that wish to share to know how the scenario that I described can be handled? My best regards.