How To Fix WGDS_PROCESS202 - &1 is not a valid boolean value. ( See type WGDS_BOOLEAN )

SAP Error Message - Details

• Message type: E = Error

• Message class: WGDS_PROCESS - Global data synchronisation

• Message number: 202

• Message text: &1 is not a valid boolean value. ( See type WGDS_BOOLEAN )

Self-Explanatory Message

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• What is the cause and solution for SAP error message WGDS_PROCESS202 - &1 is not a valid boolean value. ( See type WGDS_BOOLEAN ) ?

  The SAP error message:
  WGDS_PROCESS202 &1 is not a valid boolean value. (See type WGDS_BOOLEAN)
  Cause:
  This error occurs when a value that is expected to be a boolean (true/false) is provided in an incorrect format or an invalid value that does not conform to the expected boolean type WGDS_BOOLEAN. In SAP, boolean values are typically represented as X (true) or space/blank (false), or sometimes as 1/0 depending on the context.
  The message indicates that the system tried to process a value for a boolean field or parameter, but the value passed (&1 is a placeholder for the actual invalid value) is not recognized as a valid boolean.
  This often happens in scenarios involving SAP Gateway, OData services, or CDS views where boolean parameters or fields are involved, or in custom code where boolean values are passed as strings or other types.
  Where it typically occurs:
  
  When calling OData services or SAP Gateway services that expect boolean parameters.
  When using CDS views or annotations that define boolean types.
  In ABAP code or BAPI calls where boolean parameters are passed incorrectly.
  During data processing or mapping where boolean values are expected but invalid values are supplied.
  
  Solution:
  
  
  Check the value passed for the boolean parameter:
  
  Ensure that the value passed corresponds to the expected boolean format.
  For SAP boolean types (WGDS_BOOLEAN), valid values are usually:
  
  'X' for TRUE
  ' ' (space) or '' (empty) for FALSE
  
  
  Sometimes 1 and 0 might be accepted depending on the context, but the safest is to use 'X' and space.
  
  
  
  Validate input data:
  
  If the value comes from an external source (e.g., UI, external system, or OData call), validate and convert the input to the correct boolean format before passing it to SAP.
  
  
  
  Check the data type definitions:
  
  Verify that the data element or type WGDS_BOOLEAN is correctly used.
  If you are using custom types or structures, ensure that the boolean fields are defined properly.
  
  
  
  Debug the code or service:
  
  Trace the point where the boolean value is assigned or passed.
  Check for any conversion or mapping errors.
  
  
  
  Correct the data mapping or transformation logic:
  
  If the error occurs during data transformation (e.g., from JSON to ABAP structures), ensure the boolean fields are correctly mapped.
  
  
  
  Additional Information:
  
  WGDS_BOOLEAN is a standard SAP data type used in Gateway Data Services (WGDS) to represent boolean values.
  The error message is part of the SAP Gateway framework or OData service processing.
  This error is a validation error indicating that the input data does not conform to the expected boolean type.
  
  Example:
  If you have an OData service expecting a boolean parameter IsActive of type WGDS_BOOLEAN, and the client sends "true" or "yes" instead of "X" or blank, this error will occur.
  Correct:
  {
    "IsActive": "X"
  }
  Incorrect:
  {
    "IsActive": "true"
  }
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Invalid value passed for a boolean parameter/type WGDS_BOOLEAN (not 'X' or space).
  
  
  Solution
  Pass correct boolean values ('X' for true, space for false), validate and convert inputs.
  
  
  Related
  SAP Gateway, OData services, CDS views, ABAP boolean parameters, WGDS_BOOLEAN type.
  
  
  
  
  If you provide the exact value that caused the error (&1), I can help you identify the invalid value and suggest the exact fix.