How To Fix WRF_APC564 - Supplier &1 is not assigned to material &2; choose another supplier

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_APC - Messages for Operational Assortment Planning and Control

• Message number: 564

• Message text: Supplier &1 is not assigned to material &2; choose another supplier

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_APC564 - Supplier &1 is not assigned to material &2; choose another supplier ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WRF_APC564 Supplier &1 is not assigned to material &2; choose another supplier
  
  Meaning / Cause:
  This error occurs when you try to perform a transaction or process in SAP (such as creating or changing a purchase order, scheduling agreement, or other procurement documents) where the specified supplier (&1) is not assigned or linked to the material (&2) in the system.
  In SAP, for procurement processes, the system expects that the supplier is maintained as a valid source of supply for the material. If the supplier is not assigned to the material in the material master or source list, the system throws this error to prevent incorrect or unauthorized procurement.
  
  Common Scenarios Where This Error Occurs:
  
  Creating a Purchase Order (PO) for a material with a supplier not assigned in the source list or info record.
  Using a supplier in MRP or procurement proposals that is not linked to the material.
  Vendor evaluation or vendor assignment checks during procurement.
  When using certain SAP modules like SAP APO (Advanced Planning and Optimization) or SAP ECC with integration to procurement.
  
  
  Cause Details:
  
  The supplier/vendor master data is not linked to the material master data.
  The source list for the material does not include the supplier.
  The purchasing info record for the material and supplier combination does not exist or is inactive.
  The material master’s purchasing view does not have the supplier assigned.
  Custom validation or user-exit logic enforcing supplier-material assignment.
  
  
  How to Solve / Resolution:
  
  
  Assign the Supplier to the Material:
  
  
  Maintain Purchasing Info Record:
  
  Transaction code: ME11 (Create Purchasing Info Record)
  
  Create or update the info record for the material and supplier combination.
  
  
  Maintain Source List:
  
  Transaction code: ME01 (Maintain Source List)
  
  Add the supplier as a valid source for the material.
  
  
  
  
  Check Material Master Data:
  
  Go to transaction MM02 (Change Material)  
  Navigate to the Purchasing view and check if the supplier is assigned or if the relevant fields are maintained correctly.
  
  
  
  Check Vendor Master Data:
  
  Ensure the vendor is active and valid for the purchasing organization and plant.
  
  
  
  Check Customizing / User Exits:
  
  If there are custom validations or user-exits, check if they enforce supplier-material assignment and adjust accordingly.
  
  
  
  Use Correct Supplier:
  
  If the supplier is not supposed to be assigned to the material, choose another supplier that is assigned.
  
  
  
  
  Additional Information:
  
  Source List: The source list is a tool in SAP to specify valid sources of supply for a material over a certain period. It helps control procurement and ensure that only approved suppliers are used.
  Purchasing Info Record: Contains data on the relationship between a material and a vendor, including prices, conditions, and delivery terms.
  Material Master Purchasing View: Contains purchasing-specific data for the material, including preferred suppliers.
  Transaction Codes:
  
  ME11: Create Purchasing Info Record
  ME01: Maintain Source List
  MM02: Change Material Master
  ME21N: Create Purchase Order (where error might appear)
  
  
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  Supplier not assigned to material
  
  
  Cause
  Supplier not linked in source list/info record/material master
  
  
  Solution
  Assign supplier via info record or source list; check material master
  
  
  Transactions
  ME11, ME01, MM02, ME21N
  
  
  
  
  If you need help with specific steps or screenshots, feel free to ask!