How To Fix WL138 - Import elements cannot be processed as a calling container is not defined

WL138 - Overview

• Message type: E = Error

• Message class: WL - Workflow: run-time messages

• Message number: 138

• Message text: Import elements cannot be processed as a calling container is not defined

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WL138 - Import elements cannot be processed as a calling container is not defined ?

  The SAP error message WL138, which states "Import elements cannot be processed as a calling container is not defined," typically occurs in the context of Web Services or when working with Business Application Programming Interfaces (BAPIs) in SAP. This error indicates that the system is unable to process the import parameters of a function module or method because it lacks the necessary context or calling container.
  Causes:
  
  Missing Context: The calling container (like a Web Service or a specific context in which the function is being called) is not defined or is not available.
  Incorrect Configuration: The configuration of the Web Service or the BAPI might be incorrect, leading to the inability to identify the calling container.
  Programming Errors: There may be issues in the ABAP code where the function module is being called, such as missing parameters or incorrect handling of the import parameters.
  Transport Issues: If the function module or service was recently