How To Fix WG000 - Client missing in header record, external requirement number &

SAP Error Message - Details

• Message type: E = Error

• Message class: WG - Messages for store order and investment buy

• Message number: 000

• Message text: Client missing in header record, external requirement number &

What causes this issue?

The client is missing in the <GL:IDOC>IDOC</> control record.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Without a client there is no way of assigning the store order to a
recipient system.

How to fix this error?

Check the control structure of the purchase order data received. The
field "client" must be filled in the control record.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WG000 - Client missing in header record, external requirement number & ?

  The SAP error message:
  WG000 Client missing in header record, external requirement number &
  typically occurs in the context of SAP Warehouse Management (WM) or Logistics Execution (LE) processes, especially when dealing with transfer orders, deliveries, or external requirement documents.
  
  Cause
  
  The error indicates that the client information (SAP system client number) is missing in the header record of an external requirement document.
  The external requirement number (e.g., delivery number, transfer order number) is passed to a function/module or interface, but the system cannot find or identify the client in the header data.
  This usually happens when:
  
  Data is being transferred between systems or modules without the client field being properly populated.
  Custom programs or interfaces (IDocs, BAPIs, user exits) do not set the client field in the header structure.
  The external requirement document is incomplete or corrupted.
  There is a mismatch or missing configuration in the integration between SAP modules (e.g., SD to WM).
  
  
  
  
  Solution
  
  
  Check the External Requirement Document:
  
  Verify that the external requirement number exists and is valid.
  Check the document header in SAP (e.g., delivery document, transfer order) to ensure the client field is correctly maintained.
  
  
  
  Review Interface or Custom Code:
  
  If the error occurs during data transfer (e.g., IDoc processing, BAPI call), ensure that the client field (MANDT) is correctly filled in the header structure.
  Debug the program or interface to confirm that the client is passed along with the external requirement number.
  
  
  
  SAP Configuration:
  
  Verify that the integration settings between modules (e.g., SD and WM) are correctly maintained.
  Check if the external requirement document type is properly configured and linked to the correct client.
  
  
  
  Data Consistency:
  
  Run consistency checks on the external requirement documents.
  Use transaction codes like VL03N (Display Delivery), LT21 (Display Transfer Order), or relevant WM transactions to inspect the document.
  
  
  
  Transport and Client Settings:
  
  If the error occurs after a transport or system copy, ensure that client-dependent data is correctly adjusted.
  Check for any missing client-specific customizing.
  
  
  
  
  Related Information
  
  Message Class: WG (Warehouse Management)
  Transaction Codes:
  
  LT21 - Display Transfer Order
  VL03N - Display Delivery
  WE02 / WE05 - IDoc monitoring (if related to IDocs)
  
  
  Common Scenarios:
  
  Integration between SD and WM where delivery documents are used as external requirements.
  Custom developments or enhancements that handle external requirement documents.
  
  
  SAP Notes:
  
  Search SAP Support Portal for notes related to message class WG and this specific error.
  
  
  Debugging:
  
  Use debugging tools to trace where the client field is lost or not set.
  Check the function modules or BAPIs involved in processing the external requirement.
  
  
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error Message
  WG000 Client missing in header record, external requirement number &
  
  
  Cause
  Client field missing in header of external requirement document
  
  
  Solution
  Ensure client is populated in header; check interfaces, custom code, and document validity
  
  
  Related Transactions
  LT21, VL03N, WE02, WE05
  
  
  Module
  Warehouse Management (WM), Logistics Execution (LE)
  
  
  
  
  If you provide more context (e.g., transaction, process step, custom code), I can help with more specific troubleshooting steps.