Trying to add a customer parameter to the OEINV report

SOLVED

Hi Everyone,

I have been writing crystal reports for BV, Sage 50 and other financial systems for 20+ years but i am new to Sage 300.  I am trying to add a customer parameter to the OEINV report so that i can select a range of invoices and enter a customer number so i only see that customers invoices.  I added it to the report and changed the report selection criteria but when i run the report it prompts me for the customer number but doesn't filter the report.  It still brings me all the invoices in the invoice range? 

What have i done wrong, i don't think it is a datapipe report but i am very new to sage 300 and might be missing something

thanks in advance everyone

Ian