Thanks for your post. It helped me in fixing the issue. I removed the comment for "CENTRE_NO" and additionally created a common key for "date" coming from two different fields from (Trans) and (Sig). With this Bar chart, I need the field "CREATE_DATE" from QVD "Sig".
The data is yet to be verified. Wondering, if I retain both the fields "CENTRE_NO" and "TaxCentreNo"(which is again derived from "CENTRE_NO") for QVD "payer", won't it generate duplicate values while showing report data. Please advise.