How To Fix /IWFND/CM_CNP018 - Formatting GSDO type '&1' to WS interface has failed

/IWFND/CM_CNP018 - Overview

• Message type: E = Error

• Message class: /IWFND/CM_CNP -

• Message number: 018

• Message text: Formatting GSDO type '&1' to WS interface has failed

Self-Explanatory Message

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/IWFND/CM_CNP018 - Details

• The SAP error message /IWFND/CM_CNP018 Formatting GSDO type '&1' to WS interface has failed typically occurs in the context of SAP Gateway and OData services. This error indicates that there was a failure in formatting a Generic Service Data Object (GSDO) type to a Web Service (WS) interface. Here are some potential causes, solutions, and related information for this error:
  Causes:
  
  Data Type Mismatch: The GSDO type being formatted may not match the expected data type in the Web Service interface.
  Missing or Incorrect Mapping: There may be an issue with the mapping between the GSDO and the WS interface, such as missing fields or incorrect data types.
  Serialization Issues: Problems during the serialization process of the GSDO to the WS format can lead to this error.
  
  Configuration Issues: Incorrect configuration in the OData service or Gateway settings may lead to formatting failures.
  Version Compatibility: There may be compatibility issues between the versions of the SAP