I am getting an error message. I am trying to do 2 statements in one.
If Invoice Date is <= OTD Date + 1 day then OT else Late and of OTD Date is blank then OT
Line OTD =
Shipments_Data[Invoice Date] <= Shipments_Data[Sales Ord Ln OTD Date]+1, "OT", "Late"),
AND( Shipments_Data[Sales Ord Ln OTD Date] = blank, "OT"