Message Number list used by SAP ABAP Class CL_TPDAPI_DATA_SERVICES (Data, variables .... and a lot more!)
SAP ABAP Class CL_TPDAPI_DATA_SERVICES (Data, variables .... and a lot more!) is using
# Object Type Object Name Object Description Note
     
1 Message Number  TPDAPI - 013 Current instance for variable &1 is no longer valid
2 Message Number  TPDAPI - 050 Internal error: unknown data type of variable &1