How To Fix MMRP01156 - Internal error: error when reading the status matrix &1

MMRP01156 - Overview

• Message type: E = Error

• Message class: MMRP01 - Rapid Planning Matrix

• Message number: 156

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

What causes this issue?

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

System Response

The systerm 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 MMRP01156 - Internal error: error when reading the status matrix &1 ?

  The SAP error message MMRP01156, which states "Internal error: error when reading the status matrix &1," typically indicates an issue related to the status matrix in the Material Management (MM) module, particularly in the context of material requirements planning (MRP) or inventory management.
  
  Cause:
  
  Data Corruption: The status matrix may be corrupted or not properly maintained, leading to issues when the system attempts to read it.
  
  Configuration Issues: Incorrect configuration settings in the material master or MRP settings can lead to this error.
  Authorization Issues: Lack of proper authorizations to access certain data or tables related to the status matrix.
  System Bugs: There may be bugs in the SAP system or specific patches that need to be applied.
  
  
  Solution:
  
  Check Data Integrity: Use transaction codes like SE11 or SE16 to check the relevant tables for any inconsistencies or corruption.
  Rebuild Status Matrix: If the status matrix is corrupted, you may need to rebuild it. This can often be