10000872 
Message
You cannot choose "Total Down Payments" "Browse" button; first create a down payment
Diagnosis
In an existing sales or purchasing document, next to the Total Down Payment field, you have attempted to choose the 
(Browse) button, but there
are no down payment transactions recorded in SAP Business One.
Procedure
Before you choose the (Browse)button next to the Total Down Payment field, create a down payment document.