How To Fix WGDS_PROCESS201 - &1 is not a valid string boolean value. ( See type WGDS_BOOLEAN_STRING )

SAP Error Message - Details

• Message type: E = Error

• Message class: WGDS_PROCESS - Global data synchronisation

• Message number: 201

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

Self-Explanatory Message

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• What is the cause and solution for SAP error message WGDS_PROCESS201 - &1 is not a valid string boolean value. ( See type WGDS_BOOLEAN_STRING ) ?

  The SAP error message:
  WGDS_PROCESS201 &1 is not a valid string boolean value. (See type WGDS_BOOLEAN_STRING)
  Cause:
  This error occurs when a value passed to a parameter or field expected to be a string boolean (i.e., a string representing a boolean value) does not conform to the allowed values defined by the data type WGDS_BOOLEAN_STRING.
  In SAP, the data type WGDS_BOOLEAN_STRING typically expects a string that represents a boolean value, such as:
  
  'X' or 'x' for TRUE
  '' (empty string) or ' ' (space) for FALSE
  
  If the input value is anything other than these expected values, the system raises this error.
  This often happens in scenarios involving SAP Gateway Data Services (GDS) or when processing OData services where boolean values are passed as strings.
  Where it happens:
  
  When processing or mapping boolean values in string format.
  During data import/export or service calls where boolean parameters are passed as strings.
  In custom code or standard SAP code that uses the WGDS_BOOLEAN_STRING type for boolean parameters.
  
  
  Solution:
  
  
  Check the input value that is causing the error (the placeholder &1 in the message will be replaced by the actual invalid value in the runtime message). Ensure that the value is one of the valid string boolean values:
  
  'X' (or 'x') for TRUE
  '' (empty string) or ' ' (space) for FALSE
  
  
  
  Correct the data source or mapping that provides this value:
  
  If the value comes from an external system or user input, validate and convert it before passing it to SAP.
  If the value is hardcoded or set in custom code, adjust the code to use the correct string boolean values.
  
  
  
  Check the data type definition:
  
  The data type WGDS_BOOLEAN_STRING is defined in the SAP system (usually in the Data Dictionary).
  You can check the allowed values by looking up this data type in transaction SE11.
  
  
  
  Debug the process:
  
  Use debugging tools to trace where the invalid value is assigned.
  Identify the source of the invalid string and fix it.
  
  
  
  
  Additional Information:
  
  WGDS_BOOLEAN_STRING is a domain or data element used in SAP Gateway Data Services (GDS) to represent boolean values as strings.
  This error is common in integration scenarios where boolean values are serialized/deserialized as strings.
  Always ensure that boolean values conform to the expected format when interfacing with SAP services or APIs.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Error message
  WGDS_PROCESS201 &1 is not a valid string boolean value. (See type WGDS_BOOLEAN_STRING)
  
  
  Cause
  Invalid string value passed where a string boolean (WGDS_BOOLEAN_STRING) is expected.
  
  
  Valid values
  'X' (TRUE), '' or ' ' (FALSE)
  
  
  Solution
  Correct the input value to conform to valid string boolean values.
  
  
  Where to check
  Data source, mapping logic, custom code, and data type definition (SE11)
  
  
  
  
  If you provide the actual invalid value (&1), I can help you identify the exact problem more precisely.