How To Fix AR121 - Bank account number contains invalid characters

SAP Error Message - Details

• Message type: E = Error

• Message class: AR - SSRV function module messages

• Message number: 121

• Message text: Bank account number contains invalid characters

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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Smart SAP Assistant

• What is the cause and solution for SAP error message AR121 - Bank account number contains invalid characters ?

  The SAP error message AR121, which states "Bank account number contains invalid characters," typically occurs when the bank account number entered in the system contains characters that are not allowed. This can happen in various SAP transactions where bank account information is required, such as vendor or customer master data maintenance.
  Cause:
  
  Invalid Characters: The bank account number may contain special characters, letters, or spaces that are not permitted. For example, it should only consist of digits (0-9) or specific allowed characters depending on the country and bank requirements.
  Incorrect Format: The format of the bank account number may not conform to the expected format defined in the system settings or country-specific requirements.
  Data Entry Errors: Mistakes during manual entry, such as typos or accidental inclusion of non-numeric characters.
  
  Solution:
  
  Check the Input: Review the bank account number for any invalid characters. Ensure that it only contains the appropriate digits and any allowed special characters (like hyphens or spaces, if applicable).
  Refer to Country-Specific Formats: Verify the required format for bank account numbers in the relevant country. Different countries have different standards (e.g., IBAN, account length).
  Use Valid Characters: Ensure that only valid characters are used. For example, if the system expects a numeric value, ensure that no letters or special characters are included.
  Consult Documentation: Check SAP documentation or your organization's guidelines for the correct format and requirements for bank account numbers.
  Test with a Valid Example: If unsure, try entering a known valid bank account number to see if the error persists. This can help identify if the issue is with the specific number being entered.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any updates or patches related to this error message. Sometimes, there may be known issues or fixes provided by SAP.
  Configuration Settings: Review the configuration settings in the SAP system related to bank account management. This can include settings in the Financial Accounting (FI) module.
  User Training: Ensure that users entering bank account information are trained on the correct formats and requirements to minimize errors.
  
  If the problem persists after checking these aspects, it may be beneficial to consult with your SAP support team or a technical consultant for further assistance.