How To Fix VF_PRC_API031 - System error: Copy not possible due to missing source item ID

SAP Error Message - Details

• Message type: E = Error

• Message class: VF_PRC_API - Messages for Pricing API

• Message number: 031

• Message text: System error: Copy not possible due to missing source item ID

Self-Explanatory Message

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• What is the cause and solution for SAP error message VF_PRC_API031 - System error: Copy not possible due to missing source item ID ?

  The SAP error message:
  VF_PRC_API031 System error: Copy not possible due to missing source item ID
  typically occurs during billing document processing, especially when using the billing API (such as BAPI_BILLINGDOC_CREATEMULTIPLE) or during copy control procedures in SD (Sales and Distribution).
  
  Cause
  
  The error indicates that the system is trying to copy or reference an item from a source document (e.g., a sales order or delivery) but cannot find the source item ID.
  This usually happens because:
  
  The source document item number is missing or not passed correctly to the billing function/module.
  The source document item was deleted or does not exist.
  Incorrect or incomplete data is provided in the input structure for the billing API.
  Custom enhancements or user exits that manipulate item data may have removed or failed to set the source item ID.
  Copy control settings are incorrect or incomplete, causing the system to fail to find the source item.
  
  
  
  
  Solution
  
  
  Check Input Data:
  
  Verify that the source document item IDs are correctly passed to the billing function/module.
  If using a BAPI, ensure that the input tables (e.g., IT_BILLINGDOCUMENTITEM) contain valid source item references.
  
  
  
  Check Source Document:
  
  Confirm that the source sales order or delivery items exist and are not deleted or blocked.
  Make sure the source document is complete and consistent.
  
  
  
  Review Copy Control Settings:
  
  Go to transaction VTAA (Copy Control for Billing Documents) and check the copy control settings between the source and target document types.
  Ensure that the item number mapping is correctly maintained.
  
  
  
  Debug or Check Enhancements:
  
  If there are user exits or BAdIs (e.g., SD_BILLING_DOCUMENT_SAVE, SD_BILLING_DOCUMENT_CREATE) implemented, check if they manipulate the source item ID.
  Debug the billing process to see where the source item ID is lost or not set.
  
  
  
  SAP Notes and Patches:
  
  Check for relevant SAP Notes that address this error for your SAP version.
  Sometimes, this error can be caused by known bugs fixed in patches.
  
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  VF01 - Create Billing Document
  VTAA - Copy Control for Billing Documents
  SE37 - Test BAPI_BILLINGDOC_CREATEMULTIPLE
  SE80 or SE38 - Debugging programs or user exits
  
  
  
  Common BAPIs:
  
  BAPI_BILLINGDOC_CREATEMULTIPLE
  BAPI_BILLINGDOC_CREATE
  
  
  
  User Exits / BAdIs:
  
  USEREXIT_FILL_VBRK_VBRP (in MV45AFZZ)
  SD_BILLING_DOCUMENT_SAVE
  SD_BILLING_DOCUMENT_CREATE
  
  
  
  SAP Notes:
  
  Search SAP Support Portal for notes related to VF_PRC_API031 or "missing source item ID".
  
  
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Missing or incorrect source item ID in billing document processing input or copy control
  
  
  Solution
  Verify input data, source document, copy control settings, and debug enhancements
  
  
  Related Info
  Transactions VF01, VTAA; BAPIs for billing; user exits; SAP Notes
  
  
  
  
  If you provide more context (e.g., which transaction or program triggers the error, or if you use a custom program), I can help with more specific guidance.