How To Fix MD363 - Subcontractor &1 has already been allocated to MRP area &2

SAP Error Message - Details

• Message type: E = Error

• Message class: MD - Material Requirements Planning (MRP)

• Message number: 363

• Message text: Subcontractor &1 has already been allocated to MRP area &2

What causes this issue?

Subcontractor &V1& is already assigned to MRP area &V2&.

System Response

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

How to fix this error?

Either choose a different subcontractor or delete subcontractor &V1& in
MRP area &V2&.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MD363 - Subcontractor &1 has already been allocated to MRP area &2 ?

  The SAP error message MD363 indicates that a subcontractor (vendor) has already been allocated to a specific MRP (Material Requirements Planning) area. This situation typically arises when there is an attempt to assign the same subcontractor to multiple MRP areas, which is not allowed in the system.
  Cause:
  
  Duplicate Assignment: The subcontractor is already assigned to the specified MRP area, and the system does not allow multiple assignments for the same subcontractor to the same MRP area.
  Configuration Issues: There may be configuration settings in the MRP area or vendor master data that are causing this conflict.
  Data Entry Errors: Incorrect data entry while trying to assign the subcontractor to the MRP area.
  
  Solution:
  
  
  Check Existing Assignments: 
  
  Go to the MRP area configuration and check if the subcontractor is already assigned to the MRP area in question. You can do this by navigating to the relevant transaction codes (like MM02 for material master or MDM1 for MRP area).
  
  
  
  Remove Duplicate Assignment: 
  
  If the subcontractor is indeed assigned to the MRP area, you may need to remove the duplicate assignment or reassign the subcontractor to a different MRP area if necessary.
  
  
  
  Review Vendor Master Data: 
  
  Check the vendor master data to ensure that the subcontractor is set up correctly and that there are no conflicting entries.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or help files related to MRP areas and subcontracting to ensure that you are following the correct procedures.
  
  
  
  Contact SAP Support: 
  
  If the issue persists and you cannot find a resolution, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  MRP Areas: MRP areas are used in SAP to manage inventory and planning at a more granular level than just plant-wide. Each MRP area can have its own planning parameters.
  Subcontracting in SAP: Subcontracting allows a company to send components to a vendor who then produces a finished product. Proper configuration is essential to ensure smooth operations.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM02 (Change Material), MDM1 (Create MRP Area), and ME2O (Purchase Orders by Vendor) for managing vendor and MRP area assignments.
  
  By following these steps, you should be able to resolve the MD363 error and ensure that your subcontractor assignments are correctly configured in the system.