How To Fix WU329 - Material: & Un: & Plant: & -> item category does not match supply source

SAP Error Message - Details

• Message type: E = Error

• Message class: WU - Promotion management messages

• Message number: 329

• Message text: Material: & Un: & Plant: & -> item category does not match supply source

What causes this issue?

During supply source determination, the material named in the message,
in the plant named in the message, is assigned a source of supply which
does not match the item category of the material.
In the allocation table, the item category of the material controls how
the material is procured and delivered to the plants.
&EXAMPLES&
Procurement from an external vendor and delivery via a distribution
center
Order placed with external vendor for direct delivery by the vendor
Delivery from the distribution center without external procurement
Different item categories may also be needed to differentiate between
the type of delivery document for deliveries from the distribution
center (e.g. stock transport order, delivery without purchase order).
Depending on the item category, selection of a vendor is limited. For
example, a distribution center cannot be entered as the source of
supply if the item category is 'third-party delivery'.

System Response

The allocation table cannot be generated for the material named in the
message in the unit of measure named in the message.

How to fix this error?

Change the item category in the overview screen, or change the sources
of supply for each plant in supply source determination (subsequent
processing).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WU329 - Material: & Un: & Plant: & -> item category does not match supply source ?

  The SAP error message WU329 indicates that there is a mismatch between the item category of a material and the supply source defined in the system. This typically occurs during the procurement process, such as when creating a purchase order or a purchase requisition. Here’s a breakdown of the cause, potential solutions, and related information for this error:
  Cause:
  
  Item Category Mismatch: The item category defined in the material master or the purchase order does not correspond to the supply source (vendor, plant, etc.) that is being referenced.
  Material Master Configuration: The material master may not be set up correctly for the specific plant or purchasing organization.
  Source List Issues: If a source list is maintained for the material, it may not include the correct item category or may not be configured properly.
  Purchasing Info Record: The purchasing info record for the material and vendor may not be set up correctly, leading to a mismatch.
  Document Type Restrictions: Certain document types may have restrictions on which item categories can be used.
  
  Solutions:
  
  Check Material Master: Verify the item category in the material master record. Ensure that it is appropriate for the type of procurement you are attempting (e.g., standard, consignment, subcontracting).
  Review Source List: If a source list is maintained, check that it includes the correct item category for the material and that it is valid for the specified plant and vendor.
  Update Purchasing Info Record: Ensure that the purchasing info record for the material and vendor is correctly set up and includes the appropriate item category.
  Adjust Document Type Settings: If applicable, check the settings for the document type being used to ensure that it allows for the item category in question.
  Consult with Configuration Team: If the issue persists, it may be necessary to consult with your SAP configuration team to review the settings related to item categories and supply sources.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes such as ME11 (Create Purchasing Info Record), ME12 (Change Purchasing Info Record), ME01 (Maintain Source List), and MM02 (Change Material) to make necessary adjustments.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message.
  Documentation: Review SAP documentation regarding item categories and procurement processes to ensure compliance with best practices.
  
  By following these steps, you should be able to identify the root cause of the WU329 error and implement the necessary changes to resolve it.