How To Fix MMRP01020 - Matrix could not be determined. Type &

MMRP01020 - Overview

• Message type: E = Error

• Message class: MMRP01 - Rapid Planning Matrix

• Message number: 020

• Message text: Matrix could not be determined. Type &

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.

MMRP01020 - Details

• The SAP error message MMRP01020, which states "Matrix could not be determined. Type &," typically occurs in the context of material management and inventory management processes. This error indicates that the system is unable to determine the appropriate matrix for a specific material type during operations such as material planning, inventory management, or when trying to create or modify material master records.
  Causes:
  
  Missing Configuration: The matrix configuration for the specific material type may not be set up in the system.
  Incorrect Material Type: The material type being used may not be valid or may not have a corresponding matrix defined.
  Data Inconsistencies: There may be inconsistencies or missing data in the material master records or related configuration tables.
  Authorization Issues: The user may not have the necessary authorizations to access the matrix configuration.
  
  Solutions:
  
  
  Check Matrix Configuration:
  
  Go to the configuration settings in SAP (usually through SPRO) and verify that the matrix for the specific material type