I've just check SAP Menu & SPRO tr and found this transaction: ACACTRANSFER - Transfer of Accrual Engine Documents to Accounting.
SAP Menu -> Accounting -> Financial Accounting -> General Ledger -> Periodic Processing -> Manual Accruals -> Corrections -> ACACTRANSFER - Transfer of Accrual Engine Documents to Accounting
This program is used to transfer Accrual Engine documents to Accounting.
It is not normally necessary to transfer documents manually because the Accrual Engine documents created are transferred to Accounting automatically when accruals are posted.
However, accounting documents might not be created when you post the Accrual Engine documents due to Customizing settings to this effect or as a result of an error occurring during the automatic transfer to Accounting. For more information, see this documentation.
In this case, you have to transfer the Accrual Engine documents to Accounting manually. Before starting this transfer, you have to remove the cause of any errors.
Accrual Engine documents are posted to Accounting only if they were posted at a key date in a fiscal year that is open for accrual postings. You open fiscal years for accrual postings in the IMG activity Open Fiscal Year for Accrual Postings.
