Import Scenario - AR Payments and Applications SO Payments

Hey everyone, 

I’m having a difficult time with this one. I broke my brain over it over the holiday weekend. I had this working at some point at the beginning of the project last week and I must have accidentally unclicked something and I can’t figure out what. 

I’m bringing in Payments for Sales Orders, so I have an import scenario to add a prepayment and then load the sales order. I keep getting this “Missing operator before the Order operand.” issue. 

Any tips from anyone out there? I’m stumped.