How To Fix FMCCAVC312 - The bank account assigned to the bank clearing account is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: FMCCAVC - Message class CCAVC - Cash control

• Message number: 312

• Message text: The bank account assigned to the bank clearing account is not unique

What causes this issue?

You are using the cash-based availability control (cash control). In
this case, every used bank clearing account (or bank subaccount) has to
be unambiguously assigned to a bank account. It seems not to be the
case - the used bank clearing account is assigned to more than one bank
account. This is not allowed.

System Response

Posting is terminated.

How to fix this error?

Define a unique assignment between a bank clearing account to be used
and a corresponding bank account.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FMCCAVC312 - The bank account assigned to the bank clearing account is not unique ?

  The SAP error message FMCCAVC312 indicates that there is an issue with the bank account assignment in the context of a bank clearing account. This error typically arises when the system finds multiple entries for the same bank account in the configuration, which leads to ambiguity in processing transactions.
  Cause:
  
  Duplicate Bank Accounts: The most common cause of this error is that there are multiple entries for the same bank account in the system. This can happen if the same bank account is assigned to different bank clearing accounts or if there are duplicate entries in the configuration.
  Incorrect Configuration: The bank clearing account may not be configured correctly, leading to conflicts in the assignment of bank accounts.
  Data Migration Issues: If data has been migrated from another system, it is possible that duplicate records were created during the migration process.
  
  Solution:
  
  
  Check Bank Account Configuration:
  
  Go to the configuration settings for bank accounts in SAP (Transaction Code: OB52 or FI12).
  Verify that each bank account is assigned uniquely to a bank clearing account. Ensure there are no duplicates.
  
  
  
  Review Bank Clearing Account Settings:
  
  Check the settings for the bank clearing account (Transaction Code: OBY6).
  Ensure that the bank account assigned to the clearing account is unique and does not conflict with other accounts.
  
  
  
  Data Cleanup:
  
  If duplicates are found, remove or consolidate them as necessary. This may involve deleting duplicate entries or reassigning bank accounts to ensure uniqueness.
  
  
  
  Testing:
  
  After making changes, test the transaction that triggered the error to ensure that the issue has been resolved.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for additional guidance on bank account configuration and clearing accounts.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FI12 (Bank Master Data), OBY6 (Bank Clearing Account Configuration), and OB52 (Open Item Management).
  SAP Notes: Check for any SAP Notes related to this error message for specific patches or updates that may address the issue.
  User Roles and Authorizations: Ensure that the user has the necessary authorizations to make changes to bank account configurations.
  
  By following these steps, you should be able to resolve the FMCCAVC312 error and ensure that your bank account assignments are correctly configured in SAP.