How To Fix WSTI_CALC079 - System cannot assign POS transactions by receipt from PIPE unambiguously

WSTI_CALC079 - Overview

• Message type: E = Error

• Message class: WSTI_CALC - Physical Inventory Messages: Book Inv. Calc. at Count Time

• Message number: 079

• Message text: System cannot assign POS transactions by receipt from PIPE unambiguously

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WSTI_CALC079 - System cannot assign POS transactions by receipt from PIPE unambiguously ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WSTI_CALC079: System cannot assign POS transactions by receipt from PIPE unambiguously
  
  
  Cause:
  This error occurs in the context of SAP Retail when processing POS (Point of Sale) transactions that are received via the PIPE interface (the interface used to transfer POS data into SAP). The system tries to assign POS transactions to receipts (documents) but encounters ambiguity — meaning it cannot clearly determine which receipt a particular POS transaction belongs to.
  Typical reasons for this ambiguity include:
  
  Multiple receipts exist with similar or overlapping criteria (e.g., same date, store, transaction number).
  Missing or inconsistent key fields in the POS data that are used for assignment.
  Duplicate or conflicting POS transaction data.
  Incorrect or incomplete configuration of the POS interface or receipt assignment logic.
  
  
  Explanation:
  When POS data is imported via PIPE, SAP attempts to link each POS transaction to a corresponding receipt document in the system. This linkage