How To Fix 1N040 - Bank key &1 is not assigned to bank area &2

1N040 - Overview

• Message type: E = Error

• Message class: 1N - BCA: Payment Item Dialog

• Message number: 040

• Message text: Bank key &1 is not assigned to bank area &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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1N040 - Details

• The SAP error message 1N040 indicates that a specific bank key is not assigned to the specified bank area. This error typically arises in the context of financial transactions, particularly when dealing with bank master data in SAP.
  
  Cause:
  The error occurs when:
  
  The bank key (a unique identifier for a bank) is not linked to the bank area (a specific organizational unit within the bank).
  The bank key may not have been created or maintained correctly in the system.
  There may be a configuration issue in the bank master data settings.
  
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check Bank Key and Bank Area Configuration:
  
  Go to the transaction code OBY6 (for bank area configuration).
  Verify that the bank key you are trying to use is indeed assigned to the correct bank area.
  
  
  
  Maintain Bank Master Data:
  
  Use transaction code FI01 (to create a bank) or FI02 (to change a bank).
  Ensure that the bank key is correctly maintained