Data Synchronisation StudioUser GuideCalculated ColumnsFunctionsISNULLOREMPTYOn this pageISNULLOREMPTYChecks to see if a string is null or empty.Syntaxbool ISNULLOREMPTY(string value)ExampleIf MyColumn is NULL or an empty string return Value2 otherwise return the value in MyColumn.IF(ISNULLOREMPTY(MyColumn), "Value2", MyColumn)