EGL0203E The function_name String function failed with error code 20.

Explanation

The index of a DBCHAR or UNICODE substring must be odd so that the index identifies the first byte of a character.

User Response

Do as follows:
  • Change the program logic to ensure that the index arguments passed to the function are valid; or
  • Call the function in a try statement, or set vgVar.handlesysLibraryErrors to 1 before calling the function, so that the program can handle the error.

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