GETTING ERROR WHEN USING TWO SUBJECT AREA

Summary:

I HAVE ONE SUBJECT AREA "Procurement - Procure To Pay Real Time'' I SELE CT PO NUMBER , CREATION DATE , CLOSED DATE,

AND FROM ANTHOR SUBJECT AREA ''Procurement - Purchasing Real Time'' I SELECT PO TYPE

AND THE ANALYSIS WORK WELL

, THEN I USE MAX FUNCTION ON CLOSED DATE COLUMN THEN I GET ERROR

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