Hello,

Can we have few screen shots. Why do you need a function for your Decision table.

Hi,

Can you try below approach?

@(Pega-RULES:DecisionTable).ObtainValue(tools, "Page on which your Decision table execute", "Decision Table")

I in fact have used the same function ObtainValue as you suggeted above..

I have used the function in a Data transform to get the value of a property.. But when i execute the decision table its throwing the error "Goal seek requires missing input property"

Step page is missing and it is unable find the input values. Make sure to pass step page.

Try this :

@(Pega-RULES:DecisionTable).ObtainValue(tools, "Page on which your Decision table execute", "Decision Table", true)

This fixed the issue for me as the property used in DT was not set in the page. The last param in the function is equivalent to "AllowMissingProperties"

Before calling the Obtain values function set  Param.AllowMissingProperties = true ( While called from Data transform )

OR 

If you are calling the decision table from Activity then there is a check box in the parameter to allow missing property, Please check that

I was having same issue as described in the original thread.  Once I added the "true" param, to allow for missing values, the Obtain Value errors disappeared.

Thanks