Symptoms
SmartForms Advanced Filter Conditions
Diagnoses
In K2 SmartForms, when we try to create an Advanced Filter Condition using "Greater than or equals to" or "Less than or equals to" conditions we get an error message stating "OData operation or is not supported."
Resolution
Workaround:
Create expression to subtract one day to the Date and another expression to add one day to Date then instead of using Greater Than equals or Less Than Equals operators, use Greater than and less than.
so your filter should be like
Date > Expression(where you subtract one day)
AND
Date < Expression(Where you add one day)
