Message type: E = Error
Message class:  FINS_CFIN_AC_CFG - Central Finance: Configuration 
Message number: 053
Message text: Account to be substituted &1 must be a reconciliation or OI managed acct
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The SAP error message FINS_CFIN_AC_CFG053 indicates that there is an issue with the account substitution configuration in the Central Finance (CFIN) environment. Specifically, it states that the account you are trying to substitute must be a reconciliation account or an Other Income (OI) managed account.
Cause: Account Type: The account you are trying to substitute is not defined as a reconciliation account or an OI managed account in the system. In SAP, reconciliation accounts are used to consolidate transactions from subsidiary ledgers into the general ledger.
Configuration Issues: There may be a misconfiguration in the account substitution rules or the mapping of accounts between the source and target systems. Data Entry Error: The account number entered may be incorrect or not properly set up in the system.
Solution: Check Account Configuration: Go to the transaction code OBY6 (for General Ledger Accounts) and verify that the account you are trying to substitute is indeed set up as a
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