How To Fix MDRD129 - Reference set to another delivery relationship

SAP Error Message - Details

• Message type: E = Error

• Message class: MDRD - Messages for Delivery Relationships

• Message number: 129

• Message text: Reference set to another delivery relationship

What causes this issue?

The reference to another delivery relationship is set as the method for
determining the<DS:GLOS.8F1666FFD6F0DB468B7643C63EECC977>delivery
relationship</> for the selected combination:
MRP area &V1&
Material group &V2&
Material &V3&
The delivery relationship for the selected combination cannot be
changed.

System Response

The system cancels processing.

How to fix this error?

If you want to change the delivery relationship for the reference, enter
the data for the reference as the selection.

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 MDRD129 - Reference set to another delivery relationship ?

  The SAP error message MDRD129, which states "Reference set to another delivery relationship," typically occurs in the context of managing delivery relationships in SAP, particularly when dealing with materials and their associated data in the system. This error can arise in various scenarios, such as during the creation or modification of delivery documents, or when trying to establish relationships between materials and their deliveries.
  Cause:
  The error usually indicates that there is an inconsistency or conflict in the delivery relationships defined in the system. This can happen due to:
  
  Incorrect Configuration: The delivery relationship might be incorrectly configured in the system, leading to conflicts with existing relationships.
  Data Integrity Issues: There may be issues with the master data, such as materials or vendors, that are causing the system to reject the delivery relationship.
  Existing Relationships: The system may already have a defined delivery relationship that conflicts with the new one you are trying to establish.
  
  Solution:
  To resolve the MDRD129 error, you can take the following steps:
  
  
  Check Existing Relationships: Review the existing delivery relationships for the materials involved. Ensure that there are no conflicting relationships that would prevent the new relationship from being established.
  
  
  Review Master Data: Verify the master data for the materials and vendors involved. Ensure that all relevant data is correctly maintained and that there are no inconsistencies.
  
  
  Configuration Review: If you have access to the configuration settings, check the settings related to delivery relationships. Ensure that they are set up correctly according to your business requirements.
  
  
  Transaction Logs: Check transaction logs or error logs for more detailed information about the error. This can provide insights into what specifically is causing the conflict.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for more information on the specific error message and its context.
  
  
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They can provide more detailed guidance based on your specific system configuration and data.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide patches or updates that could resolve the issue.
  Transaction Codes: Familiarize yourself with relevant transaction codes (e.g., VL01N for creating deliveries, VL02N for changing deliveries) that may help you navigate the delivery processes.
  User 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 and resolve the cause of the MDRD129 error in your SAP system.