Service passing wrong variable value

 

I have a very simple ProcessFlow that is launched from AP20.1 when a record it added and is triggered by the Lawson service "NoRcptInPool".  The values passed for the workunit variables include API_VENDOR and API_INVOICE.  The value for the vendor is correct, but it is also the value being passed for the invoice.  I have checked everything I can think of but can't figure out why it is passing the wrong value for the invoice.  The Form Fields Def field numbers are correct, the ProcessFlow tests successfully independently, but not from our scripting environment when an invoice is entered in AP20.1.  Here are the work unit variables being passed:

name="workUnitVariablesViewForm" action="/bpm/views/workUnitVariablesViewForm.do" method="post">

Variable Name	Sequence Nbr	Variable Type	Variable Value
API_COMPANY	3	3 - String	2082
API_INVOICE	2	3 - String	702761
API_PO_NUMBER	1	3 - String	131538
API_VENDOR	4	3 - String	702761

name="workUnitVariablesViewForm" action="/bpm/views/workUnitVariablesViewForm.do" method="post">

Can anyone offer any suggestions for troubleshooting this?

Thanks, PaulaB