How To Fix MMRP01304 - Exception in function module &1

SAP Error Message - Details

• Message type: E = Error

• Message class: MMRP01 - Rapid Planning Matrix

• Message number: 304

• Message text: Exception in function module &1

What causes this issue?

An exception has been triggered from function module &V1&, which is
called from MMRPTT_MATRIX_DISPLAY (this function module).

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MMRP01304 - Exception in function module &1 ?

  The SAP error message MMRP01304, which states "Exception in function module &1," typically occurs in the context of Material Management (MM) and can be related to various issues, often involving the handling of materials, inventory management, or related functions.
  Possible Causes:
  
  Data Inconsistencies: There may be inconsistencies in the material master data or inventory records.
  Configuration Issues: Incorrect configuration settings in the material management module can lead to this error.
  Authorization Problems: The user may not have the necessary authorizations to perform the action that triggered the error.
  Function Module Errors: The specific function module referenced in the error message may have encountered an unexpected condition or exception.
  System Bugs: There may be bugs or issues in the SAP system that need to be addressed through patches or updates.
  
  Solutions:
  
  Check Material Master Data: Verify that the material master data is complete and consistent. Look for missing or incorrect entries.
  Review Configuration Settings: Ensure that the configuration settings in the MM module are correct. This may involve checking settings related to material types, valuation classes, etc.
  User Authorizations: Confirm that the user has the necessary authorizations to perform the action. This may involve checking roles and permissions in the user profile.
  Debugging: If you have access to debugging tools, you can analyze the function module mentioned in the error message to identify the root cause of the exception.
  SAP Notes and Patches: Check the SAP Support Portal for any relevant notes or patches that address this specific error. Applying the latest updates may resolve the issue.
  Consult SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. Provide them with the error details and any relevant logs.
  
  Related Information:
  
  Transaction Codes: You may want to check transaction codes related to material management, such as MM01 (Create Material), MM02 (Change Material), or MB1A (Goods Withdrawal).
  Logs and Traces: Review system logs (SM21) and application logs (SLG1) for additional context around the error.
  Function Module Documentation: If you know the specific function module causing the error, you can look up its documentation for more details on its parameters and expected behavior.
  
  By following these steps, you should be able to diagnose and potentially resolve the MMRP01304 error in your SAP system.