How To Fix MDQ_DATA_EXCHANGE165 - The assigned message class &1 does not exists.

SAP Error Message - Details

• Message type: E = Error

• Message class: MDQ_DATA_EXCHANGE - MDQ Data Exchange Message Class

• Message number: 165

• Message text: The assigned message class &1 does not exists.

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message MDQ_DATA_EXCHANGE165 - The assigned message class &1 does not exists. ?

  The SAP error message MDQ_DATA_EXCHANGE165 indicates that the system is trying to access a message class that does not exist in the SAP system. This can occur in various scenarios, particularly when dealing with Master Data Governance (MDG) or data exchange processes.
  Cause:
  
  Missing Message Class: The specified message class (denoted by &1 in the error message) has not been created or is not available in the system.
  Incorrect Configuration: The configuration settings may reference a message class that has not been defined.
  Transport Issues: If the message class was supposed to be transported from another system (like Development to Production), it may not have been included in the transport request.
  Authorization Issues: The user may not have the necessary authorizations to access the message class.
  
  Solution:
  
  
  Check Message Class:
  
  Go to transaction code SE91 (Message Class Maintenance) and check if the message class exists.
  If it does not exist, you may need to create it or correct the configuration that references it.
  
  
  
  Create Message Class:
  
  If the message class is missing, you can create it in SE91. Make sure to define the necessary messages within that class.
  
  
  
  Review Configuration:
  
  Check the configuration settings in the relevant areas (like MDG or data exchange settings) to ensure that they are pointing to the correct message class.
  
  
  
  Transport Requests:
  
  If the message class was supposed to be transported, check the transport requests to ensure that it was included and successfully imported into the target system.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to access the message class. This may involve checking roles and authorizations in transaction PFCG.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific module you are working with, as there may be additional steps or considerations.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Community Forums: SAP Community or other forums may have discussions related to this error, which can provide insights or solutions from other users who faced similar issues.
  SAP Support: If the issue persists and you have access to SAP support, consider raising a support ticket for further assistance.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.