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