How To Fix 88658 - Declaration key length &1 exceeds allowed field length &2

SAP Error Message - Details

• Message type: E = Error

• Message class: 88 - REA Processing

• Message number: 658

• Message text: Declaration key length &1 exceeds allowed field length &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.

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 88658 - Declaration key length &1 exceeds allowed field length &2 ?

  The SAP error message 88658, which states "Declaration key length &1 exceeds allowed field length &2," typically occurs in the context of data entry or processing where a declaration key (often related to tax or regulatory reporting) exceeds the maximum length defined in the system.
  Cause:
  
  Exceeding Field Length: The primary cause of this error is that the declaration key you are trying to enter or process is longer than the allowed length defined in the SAP system. Each field in SAP has a predefined length, and if the input exceeds this length, the system will throw this error.
  Configuration Issues: Sometimes, this can be due to incorrect configuration settings in the system where the declaration key length is not properly defined or updated.
  Data Migration Issues: If data has been migrated from another system, it may contain longer keys that do not conform to the SAP field length restrictions.
  
  Solution:
  
  Check the Declaration Key: Review the declaration key you are trying to enter. Ensure that it does not exceed the maximum length allowed by the system. You may need to truncate or modify the key to fit within the allowed length.
  Review Field Length Settings: If you have access to the configuration settings, check the field length settings for the declaration key in the relevant SAP module (e.g., FI, CO, etc.). You may need to adjust the settings if they are incorrectly configured.
  Data Validation: Implement data validation checks before entering data into the system to ensure that all keys conform to the required lengths.
  Consult Documentation: Refer to SAP documentation or help resources for specific details on the declaration key and its allowed lengths.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They may provide insights specific to your system configuration.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide updates related to declaration keys.
  Transaction Codes: Familiarize yourself with transaction codes related to the module you are working in (e.g., SE11 for Data Dictionary, SE37 for Function Modules) to investigate the underlying data structures.
  Testing: If changes are made to the configuration or data, conduct thorough testing to ensure that the error does not recur and that the system behaves as expected.
  
  By following these steps, you should be able to resolve the error message 88658 and ensure that your declaration keys are within the allowed field lengths.