How To Fix WP607 - Supplier & invalid (only external suppliers are possible)

SAP Error Message - Details

• Message type: E = Error

• Message class: WP - Messages from POS interface

• Message number: 607

• Message text: Supplier & invalid (only external suppliers are possible)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WP607 - Supplier & invalid (only external suppliers are possible) ?

  The SAP error message WP607: "Supplier & invalid (only external suppliers are possible)" typically occurs in the context of work clearance management (WCM) or plant maintenance (PM) processes when you try to assign a supplier that is not recognized as an external supplier in the system.
  
  Cause:
  
  The supplier number entered is not flagged as an external supplier in the SAP system.
  The system expects an external supplier (vendor) for the particular transaction or process, but the supplier master data does not meet this requirement.
  This can happen if the supplier is set up as an internal company code or plant, or if the supplier master record is incomplete or incorrectly maintained.
  
  
  Solution:
  
  
  Check Supplier Master Data:
  
  Go to transaction XK03 (Display Vendor) or MK03 (Display Vendor - Purchasing).
  Verify that the supplier/vendor is correctly created and flagged as an external vendor.
  Check the Account Group and ensure it is appropriate for external suppliers.
  Check the Purchasing data and Company code data to confirm the vendor is active and valid.
  
  
  
  Flag Supplier as External:
  
  If the supplier is incorrectly set up, update the vendor master record to reflect that it is an external supplier.
  This might involve changing the account group or adding missing data in the vendor master.
  
  
  
  Use Correct Supplier Number:
  
  Ensure that the supplier number you are entering is the correct external vendor number.
  Sometimes internal suppliers or plant numbers are mistakenly entered instead of vendor numbers.
  
  
  
  Consult Configuration:
  
  In some cases, the system configuration for work clearance or maintenance orders restricts suppliers to external vendors only.
  Check customizing settings in SPRO under Plant Maintenance or Work Clearance Management to confirm supplier/vendor settings.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  XK03 / MK03: Display Vendor Master Data
  XK02 / MK02: Change Vendor Master Data
  IW31 / IW32: Create/Change Maintenance Order (where supplier might be assigned)
  WCM related transactions if applicable
  
  
  
  SAP Notes:
  
  Check SAP Notes related to WP607 for any known issues or patches.
  
  
  
  Business Context:
  
  This error is common when assigning vendors for external services or materials in maintenance orders or work clearance processes.
  Internal suppliers or plants cannot be used where external vendors are required.
  
  
  
  
  If you provide the exact transaction or process where the error occurs, I can give more tailored advice.