We monthly check VAT registers and to do that we stop booking invoices. To avoid any mistake we would like to block any new invoice booking on the system but closing the period (K) in S_ALR_87003642, we then can neither register cash payments/receipts.
Do you know any functionality or setting which lock invoice booking but letting system ope for registering payment/receipt by bank?
You can restrict posting to different accounts in S_ALR_87003642. So, perhaps, restrict posing to accounts related to invoices? Also, you can specify there “Authorization Group” to fine-tune which users will be able to do postings and when. Check “F1” help in SAP to learn more about “Authorization Group”.