How To Fix MDQ_DATA_EXCHANGE134 - One rule already exists in target system.

SAP Error Message - Details

• Message type: E = Error

• Message class: MDQ_DATA_EXCHANGE - MDQ Data Exchange Message Class

• Message number: 134

• Message text: One rule already exists in target system.

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_EXCHANGE134 - One rule already exists in target system. ?

  The SAP error message MDQ_DATA_EXCHANGE134 indicates that there is an attempt to create or transfer a rule in the target system that already exists. This typically occurs in the context of Master Data Governance (MDG) or when working with data replication processes.
  Cause:
  The error is caused by the following scenarios:
  
  Duplicate Rule: The rule you are trying to create or replicate already exists in the target system.
  Data Consistency Issues: There may be inconsistencies in the data being transferred, leading to conflicts with existing records.
  Configuration Issues: The configuration settings in the source or target system may not be aligned, causing the system to misinterpret the existing rules.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Existing Rules:
  
  Verify if the rule you are trying to create already exists in the target system. You can do this by navigating to the relevant transaction or using the appropriate reporting tools in SAP.
  
  
  
  Modify or Delete Existing Rule:
  
  If the rule already exists and is not needed, consider deleting it or modifying it as per your requirements.
  If the existing rule is valid, you may need to adjust your data transfer process to avoid duplication.
  
  
  
  Adjust Data Transfer Logic:
  
  Review the logic or mapping used in the data transfer process to ensure that it does not attempt to create duplicate entries.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to MDG and data replication for any specific guidelines or best practices that may apply to your situation.
  
  
  
  Error Logs:
  
  Check the error logs for more detailed information about the error. This can provide insights into what specifically is causing the duplication.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They may provide additional insights or patches if this is a known issue.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MDGIMG for configuration, MDG_MAINTAIN for maintaining master data, and SLG1 for viewing application logs.
  SAP Notes: Search for SAP Notes related to MDG and the specific error message for any patches or updates that may address the issue.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the error and implement a suitable solution.