How To Fix WS_TOOL891 - Field &1 missing from structure &2

SAP Error Message - Details

• Message type: E = Error

• Message class: WS_TOOL - Message Class for Web Services and Virtual Endpoints

• Message number: 891

• Message text: Field &1 missing from structure &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WS_TOOL891 - Field &1 missing from structure &2 ?

  The SAP error message:
  WS_TOOL891 Field &1 missing from structure &2
  typically occurs during ABAP development or when working with data structures in SAP, especially in contexts involving function modules, BAPIs, or data dictionary operations.
  
  Cause
  This error means that a specific field (denoted by &1) is expected to be present in a particular structure (denoted by &2), but it is missing. The system or tool (often a Web Service tool, BAPI interface, or a code generator) expects the structure to contain this field, but it cannot find it.
  Common scenarios causing this error:
  
  The structure definition in the ABAP Dictionary does not include the required field.
  A mismatch between the expected interface (e.g., in a Web Service or BAPI) and the actual data structure.
  The structure was changed or customized, and the field was removed or renamed.
  The tool or program is using an outdated or incorrect version of the structure.
  Inconsistent metadata or interface definitions, especially when generating