How To Fix FKKPREP421 - Card number &1 contains invalid character &2

SAP Error Message - Details

• Message type: E = Error

• Message class: FKKPREP - Prepaid Functions

• Message number: 421

• Message text: Card number &1 contains invalid character &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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FKKPREP421 - Card number &1 contains invalid character &2 ?

  The SAP error message FKKPREP421 indicates that there is an issue with a card number being processed in the system. Specifically, the error states that the card number contains an invalid character. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Invalid Characters: The card number may contain characters that are not allowed, such as letters, special characters, or spaces. Typically, card numbers should only consist of digits.
  Data Entry Errors: The card number may have been entered incorrectly, leading to the inclusion of invalid characters.
  Data Format Issues: The system may expect the card number in a specific format, and if the format is not adhered to, it can trigger this error.
  
  Solution:
  
  Check Card Number: Review the card number for any invalid characters. Ensure that it consists only of numeric digits (0-9).
  Correct Data Entry: If the card number was entered manually, re-enter it carefully, ensuring that no invalid characters are included.
  Data Validation: Implement validation checks in the data entry process to prevent invalid characters from being entered in the future.
  System Configuration: If the error persists, check the system configuration for any specific rules regarding card number formats. Adjust the settings if necessary to accommodate valid card formats.
  Consult Documentation: Refer to SAP documentation or support resources for any specific guidelines related to card number formats in your version of SAP.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Transaction Codes: If you are using specific transaction codes related to payment processing or customer data management, ensure that you are following the correct procedures for those transactions.
  User Training: Ensure that users entering card numbers are trained on the correct format and the importance of data integrity to avoid such errors in the future.
  
  If the issue persists after following these steps, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.