How To Fix WY148 - External manufacturer number &1; no supplier found

SAP Error Message - Details

• Message type: E = Error

• Message class: WY - Supplier Master

• Message number: 148

• Message text: External manufacturer number &1; no supplier found

What causes this issue?

You wanted to determine data from the vendor master for external
manufacturer number &V1&. However, no data exists in the vendor master
for this number.

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?

Please use another external manufacturer number.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WY148 - External manufacturer number &1; no supplier found ?

  Certainly! Here's a detailed explanation for the SAP error message WY148: External manufacturer number &1; no supplier found:
  
  Error Message
  WY148: External manufacturer number &1; no supplier found
  
  Cause
  This error occurs when SAP tries to find a supplier (vendor) master record based on an external manufacturer number provided in a process (such as in procurement, production, or quality management), but no corresponding supplier record exists in the system.
  
  The external manufacturer number is typically a reference number used by the customer or external system to identify a supplier.
  SAP attempts to map this external number to an internal supplier (vendor) master record.
  If the mapping or master data is missing or incorrect, SAP cannot find the supplier, triggering this error.
  
  
  When does it occur?
  
  During procurement processes involving external manufacturers.
  When creating or processing purchase orders, contracts, or quality notifications referencing an external manufacturer.
  In integration scenarios where external manufacturer numbers are used to identify suppliers.
  
  
  Solution
  
  
  Check Vendor Master Data:
  
  Verify if the supplier/vendor master record exists in SAP.
  Use transaction XK03 (Display Vendor) or MK03 (Display Vendor Purchasing) to check if the vendor exists.
  
  
  
  Check External Manufacturer Number Mapping:
  
  The external manufacturer number must be maintained in the vendor master or in a mapping table.
  Check if the external manufacturer number is correctly assigned to a vendor.
  This mapping can be maintained in:
  
  Vendor master general data or purchasing data.
  Custom tables or configuration depending on your SAP implementation.
  
  
  
  
  
  Maintain Missing Data:
  
  If the vendor does not exist, create the vendor master record using XK01 or MK01.
  If the vendor exists but the external manufacturer number is missing, update the vendor master or relevant mapping table with the correct external manufacturer number.
  
  
  
  Check Configuration:
  
  In some cases, the external manufacturer number is linked via configuration in IMG under:
  
  Logistics ? Materials Management ? Purchasing ? Vendor Master ? Define External Manufacturer Number.
  
  
  Ensure that the configuration is correct and the external manufacturer number is properly linked to the vendor.
  
  
  
  Data Consistency:
  
  Ensure that the external manufacturer number used in the transaction exactly matches the one maintained in the system (no extra spaces, correct format).
  
  
  
  Consult with Business/Process Owners:
  
  Confirm the correct external manufacturer number to be used.
  Validate if any recent changes in vendor master data or external manufacturer numbers have been made.
  
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  XK01 / MK01 – Create Vendor
  XK03 / MK03 – Display Vendor
  ME21N – Create Purchase Order (where the error might appear)
  SPRO – For configuration checks
  
  
  
  Tables:
  
  LFA1 – Vendor Master (General Data)
  LFM1 – Vendor Master Purchasing Data
  Custom tables or Z-tables may be used for external manufacturer number mapping.
  
  
  
  Notes and Documentation:
  
  Check SAP Notes related to external manufacturer number and vendor master integration.
  Review your company’s SAP documentation on vendor master data and external manufacturer number usage.
  
  
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  No vendor master record found for the given external manufacturer number.
  
  
  Solution
  Create or update vendor master data; maintain correct external manufacturer number mapping.
  
  
  Where to Check
  Vendor master (XK03), configuration (SPRO), mapping tables, transaction causing error.
  
  
  Related Tcodes
  XK01, XK03, MK01, MK03, ME21N
  
  
  
  
  If you provide the exact transaction or process where this error occurs, I can help with more specific steps.