How To Fix DMU813 - DMU Matrix &1 not found

SAP Error Message - Details

• Message type: E = Error

• Message class: DMU - Digital Mock Up (DMU)

• Message number: 813

• Message text: DMU Matrix &1 not found

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMU813 - DMU Matrix &1 not found ?

  The SAP error message DMU813, which states "DMU Matrix &1 not found," typically occurs in the context of the Data Migration Workbench (DMW) or during data migration activities. This error indicates that the system is unable to locate a specific DMU (Data Migration Utility) matrix that is required for the data migration process.
  Cause:
  
  Missing Matrix: The specified DMU matrix (indicated by &1) does not exist in the system. This could be due to it not being created, deleted, or not properly transported from another system.
  Incorrect Configuration: The configuration settings may not point to the correct matrix or may have been altered.
  Authorization Issues: The user may not have the necessary authorizations to access the DMU matrix.
  Transport Issues: If the matrix was supposed to be transported from another system, there may have been issues during the transport process.
  
  Solution:
  
  Check Matrix Existence: Verify if the DMU matrix exists in the system. You can do this by navigating to the relevant transaction or table where DMU matrices are stored.
  Create or Restore Matrix: If the matrix does not exist, you may need to create it or restore it from a backup or another system where it is available.
  Review Configuration: Check the configuration settings to ensure that they are correctly pointing to the existing DMU matrix.
  Authorization Check: Ensure that the user has the necessary authorizations to access the DMU matrix. You may need to consult with your SAP security team.
  Transport Check: If the matrix was supposed to be transported, check the transport logs for any errors and ensure that the transport was successful.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as DMU, LTMC, or others related to data migration.
  SAP Notes: Check SAP Notes for any known issues or patches related to the DMU matrix error. SAP frequently updates its knowledge base with solutions to common problems.
  Documentation: Review the official SAP documentation for Data Migration Workbench to understand the requirements and setup for DMU matrices.
  Community Forums: Consider checking SAP Community forums or other user groups for similar issues and solutions shared by other users.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.