How To Fix MW657 - Internal error in form &: &

SAP Error Message - Details

• Message type: E = Error

• Message class: MW - Messages IS-R / Allocation Tables

• Message number: 657

• Message text: Internal error in form &: &

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 MW657 - Internal error in form &: & ?

  The SAP error message MW657, which states "Internal error in form &: &," typically indicates that there is an issue with the internal processing of a form or function module in SAP. This error can occur in various contexts, often related to material management or inventory processes.
  Possible Causes:
  
  Program Errors: There may be a bug or issue in the ABAP code of the program or function module that is being executed.
  Data Issues: Corrupted or inconsistent data in the database can lead to unexpected behavior in the program.
  Configuration Issues: Incorrect configuration settings in the system can lead to errors during processing.
  System Bugs: The error may be due to a known bug in the version of SAP you are using, which may have been addressed in a later patch or update.
  
  Solutions:
  
  Check SAP Notes: Look for relevant SAP Notes in the SAP Support Portal. These notes may provide information about known issues and their resolutions.
  Debugging: If you have access to the ABAP debugger, you can analyze the program where the error occurs to identify the root cause.
  Data Consistency Check: Run consistency checks on the relevant data to ensure there are no corrupt entries.
  Update SAP: Ensure that your SAP system is up to date with the latest patches and updates, as this may resolve known issues.
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance.
  
  Related Information:
  
  Transaction Codes: Depending on the context of the error, you may want to check transaction codes related to inventory management, such as MIGO (Goods Movement) or MB1A (Goods Withdrawal).
  Logs: Check the application logs (transaction SLG1) for more detailed error messages that may provide additional context.
  User Exits and BAdIs: If custom code is involved, review any user exits or Business Add-Ins (BAdIs) that may be affecting the process.
  
  Conclusion:
  The MW657 error can be complex, and resolving it may require a combination of checking for program errors, ensuring data integrity, and possibly applying updates or patches. If you are unable to resolve the issue on your own, engaging with SAP Support is often the best course of action.