How To Fix 06728 - You may not assign any sources of supply to items without material

SAP Error Message - Details

• Message type: E = Error

• Message class: 06 -

• Message number: 728

• Message text: You may not assign any sources of supply to items without material

What causes this issue?

You can only determine sources for items containing a material number.

System Response

The system cannot assign the item to a source of supply.

How to fix this error?

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 06728 - You may not assign any sources of supply to items without material ?

  The SAP error message 06728, "You may not assign any sources of supply to items without material," typically occurs when you are trying to assign a source of supply (like a vendor or a purchasing info record) to a purchasing document item that does not have a material number associated with it. This is common in scenarios involving purchasing documents such as purchase requisitions or purchase orders.
  Cause:
  
  Missing Material Number: The item in the purchasing document does not have a material number assigned. This can happen if the item is a service or if the material number was not entered correctly.
  Incorrect Document Type: The document type being used may not support items without material numbers.
  Configuration Issues: There may be configuration settings in the system that restrict the assignment of sources of supply to items without material numbers.
  
  Solution:
  
  Check Material Assignment: Ensure that the item in question has a valid material number assigned. If it is a service, ensure that the service master is correctly set up.
  Use Service Master: If you are dealing with services, make sure to create a service master record and assign it to the purchasing document.
  Review Document Type: Verify that the document type you are using allows for items without material numbers. If not, consider using a different document type that supports such items.
  Consult Configuration: If the issue persists, consult with your SAP configuration team to review the settings related to purchasing documents and source assignment.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like ME51N (Create Purchase Requisition), ME21N (Create Purchase Order), or ME22N (Change Purchase Order) to check and modify the purchasing documents.
  Service Procurement: If you are dealing with service procurement, familiarize yourself with the service procurement process in SAP, including the creation of service specifications and service entry sheets.
  SAP Notes: Check for any relevant SAP Notes that may address this error or provide additional guidance on handling purchasing documents without material numbers.
  
  By following these steps, you should be able to resolve the error and successfully assign sources of supply to your purchasing document items.