How To Fix XR303 - Supplier &2 cannot be uniquely assigned to plant

XR303 - Overview

• Message type: E = Error

• Message class: XR - CRM Business Partner Data Exchange

• Message number: 303

• Message text: Supplier &2 cannot be uniquely assigned to plant

What causes this issue?

Partner &2 is assigned as supplier to partner &1 in CRM. This function
is represented in SAP R/3 as supplying plant. Partner &2 is assigned to
more than one plant; therefore unique assignment is not possible.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

The supplying plant function cannot be filled.

How to fix this error?

Check the assignment of plants to business partners in
<DS:SIMG.SIMG_CFMENUOLMEOMGN>Customizing --> Set Up Stock Transport
Order</>. Only one business partner can be assigned to each plant.

Error message extract from SAP system. Copyright SAP SE.

XR303 - Details

• The SAP error message XR303 indicates that the system is unable to uniquely assign a supplier (vendor) to a specific plant. This typically occurs in the context of material management and procurement processes when there are multiple vendor records that could potentially match the criteria for a given plant.
  
  Cause:
  
  Multiple Vendor Records: There may be multiple vendor records for the same supplier that are not uniquely defined for the specific plant.
  Missing Plant-Specific Data: The vendor master data may not have been set up correctly for the specific plant, leading to ambiguity.
  Incorrect Vendor Assignment: The vendor may not be assigned to the plant in the vendor master data.
  Data Inconsistencies: There could be inconsistencies or errors in the vendor master data that prevent the system from determining the correct assignment.
  
  
  Solution:
  
  
  Check Vendor Master Data:
  
  Go to the vendor master data (transaction code XK03 or MK03) and check if the vendor is correctly assigned to the