How To Fix WPOSP_ADD_CUST001 - Internal error: >site< parameter not filled

SAP Error Message - Details

• Message type: E = Error

• Message class: WPOSP_ADD_CUST - Customizing-Related Messages for Package WPOS_PIPE_ADD

• Message number: 001

• Message text: Internal error: >site< parameter not filled

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WPOSP_ADD_CUST001 - Internal error: >site< parameter not filled ?

  The SAP error message:
  WPOSP_ADD_CUST001 Internal error: >site< parameter not filled
  typically occurs in the context of SAP Retail or SAP POS (Point of Sale) integration scenarios, especially when working with the POS subsystem or when adding customer data via POS interfaces.
  
  Cause
  
  The error indicates that a mandatory parameter called site (which usually refers to the store/site ID or location identifier) is not being passed or is empty during the processing of a customer addition or update.
  The site parameter is essential because it identifies the retail site/store where the transaction or customer data is being processed.
  This can happen due to:
  
  Missing or incorrect configuration in the POS subsystem or middleware.
  Incorrect or incomplete data being sent from the POS terminal or external system.
  A programming or mapping error in the interface or BAPI that handles customer data.
  Missing assignment of the site/store in the customizing or master data.
  
  
  
  
  Solution
  
  
  Check the POS Configuration:
  
  Verify that the POS terminal or the middleware system is correctly configured to send the site parameter.
  Ensure that the site/store ID is maintained and correctly mapped in the POS profile or interface settings.
  
  
  
  Verify Master Data:
  
  Check that the site/store exists and is active in SAP Retail master data.
  Ensure that the site is assigned correctly in the customer master or related data structures if applicable.
  
  
  
  Review Interface or BAPI Calls:
  
  If a custom program, BAPI, or interface is used to add or update customer data, check the code or mapping to ensure the site parameter is filled before the call.
  Debug the process to see where the site parameter is lost or not assigned.
  
  
  
  Check Middleware or Integration Layer:
  
  If an integration platform (e.g., SAP PI/PO, CPI) is used, verify the message mapping and transformation steps to ensure the site field is populated.
  
  
  
  SAP Notes and Support:
  
  Search for SAP Notes related to WPOSP_ADD_CUST001 or the specific error message.
  Sometimes SAP provides patches or corrections for known issues.
  
  
  
  
  Related Information
  
  Transaction / Program: The error often appears during POS data replication or customer data synchronization.
  Relevant Modules: SAP Retail (IS-Retail), POS subsystem, Customer Management.
  Common SAP Tables:
  
  WPOSP_SITE or similar tables holding site/store information.
  Customer master tables (KNA1, KNVV) may be indirectly involved.
  
  
  Debugging Tips:
  
  Use transaction WE02 or WE05 to check IDoc messages if the data is transferred via IDocs.
  Use debugging in the relevant function module or BAPI to check parameter values.
  
  
  SAP Notes: Check SAP Support Portal for notes with keywords like WPOSP_ADD_CUST001, site parameter not filled, or related POS customer add errors.
  
  
  If you provide more context (e.g., transaction, scenario, interface used), I can help with more specific steps.