Adding values to empty ExtractedResults Value in Document Understanding

I am applying some business rules in between Data Extraction and Validation station. Part of that, I try to add values to the empty fields by code, but Present Validation station throws error

Following are the methods I used

ExtractedResults.ResultsDocument.Tables(0).Values(0).GetCell(RowIndex,1).Values.Append(ResultResponse)

ExtractedResults.ResultsDocument.Tables(0).Values(0).GetCell(RowIndex,1).Values=arrayValuesResponse

I can see the values got added when I debug, but looks like Validation station doesn’t like the change if we modify the empty field in the ExtractedResult.

Let me know if you experience this issue, or any resolution

H @jamesjacobsydney ,

Could you let us know what was the Error Message that was thrown from the Present Validation Station Activity ?

@supermanPunch, the error message is “object reference not set to an instance of an object”