How To Fix MMRP01157 - Internal error: error when reading the item node of status matrix &1

SAP Error Message - Details

• Message type: E = Error

• Message class: MMRP01 - Rapid Planning Matrix

• Message number: 157

• Message text: Internal error: error when reading the item node of status matrix &1

What causes this issue?

An error occurred during the reading of the component node for the
status matrix &V1& from the liveCache.

System Response

The system terminates the processing.

How to fix this error?

Contact SAP.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MMRP01157 - Internal error: error when reading the item node of status matrix &1 ?

  The SAP error message MMRP01157, which states "Internal error: error when reading the item node of status matrix &1," typically occurs in the context of Material Management (MM) or Production Planning (PP) modules when there is an issue with the status matrix for a material or item.
  Cause:
  
  Data Corruption: The status matrix for the material may be corrupted or not properly maintained.
  Configuration Issues: There may be issues with the configuration of the status management settings in the system.
  Missing Entries: The item node referenced in the error message may not exist or may be missing necessary entries in the database.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access the status matrix.
  System Bugs: There could be bugs in the SAP system that lead to this error, especially if you are using an older version of SAP.
  
  Solution:
  
  Check the Status Matrix: Verify the status matrix configuration for the material in question. Ensure that all necessary entries are present and correctly configured.
  Data Consistency Check: Run a consistency check on the material master data to identify and correct any inconsistencies.
  Transaction Codes: Use transaction codes like MM02 (Change Material) or MM03 (Display Material) to check the status settings for the material.
  Authorization Check: Ensure that the user has the necessary authorizations to access the material and its status matrix.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve the issue.
  Debugging: If you have access to debugging tools, you can analyze the program flow to identify where the error occurs.
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01, MM02, MM03, MM04, and MM17 for material management.
  SAP Documentation: Review SAP documentation related to material status management and configuration.
  User Forums: Check SAP community forums or user groups for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to diagnose and resolve the MMRP01157 error in your SAP system.