How To Fix 88663 - Only numeric characters are allowed for declaration key

SAP Error Message - Details

• Message type: E = Error

• Message class: 88 - REA Processing

• Message number: 663

• Message text: Only numeric characters are allowed for declaration key

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message 88663 - Only numeric characters are allowed for declaration key ?

  The SAP error message 88663, which states "Only numeric characters are allowed for declaration key," typically occurs when a user attempts to enter a declaration key that contains non-numeric characters in a field that is expected to accept only numeric input. This error is often encountered in the context of financial or tax reporting, where specific keys or codes are required to adhere to a numeric format.
  Cause:
  
  Invalid Input: The most common cause is that the user has entered a declaration key that includes letters, special characters, or spaces instead of strictly numeric characters.
  Configuration Issues: There may be a configuration issue in the system where the field is not properly set to accept only numeric values.
  Data Migration Issues: If data has been migrated from another system, it may have included non-numeric characters that are not valid in the current SAP environment.
  
  Solution:
  
  Check Input: Verify the declaration key you are trying to enter. Ensure that it consists only of numeric characters (0-9). Remove any letters, special characters, or spaces.
  Field Configuration: If you have access to the configuration settings, check the field definitions in the relevant module (e.g., Financial Accounting, Tax Reporting) to ensure that the field is set to accept only numeric values.
  Data Validation: Implement data validation checks in your input forms to prevent users from entering invalid characters in the future.
  Consult Documentation: Refer to SAP documentation or help files for the specific module you are working with to understand the expected format for declaration keys.
  Contact Support: If the issue persists and you believe it is a system error, consider reaching out to your SAP support team or consulting with SAP support for further assistance.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Transaction Codes: Familiarize yourself with the relevant transaction codes in SAP that pertain to the module you are working in (e.g., FB60 for vendor invoices, FBL1N for vendor line items).
  User Training: Provide training for users on the correct formats for entering data in SAP to minimize the occurrence of such errors.
  
  By following these steps, you should be able to resolve the error and ensure that only valid numeric declaration keys are entered into the system.