Normal workflow: Create a sales order, have the customer pay a 10% advance, then process the rest of the flow. My workflow: Have the customer pay a 10% advance, then after he pays create a sales order, process the rest of the flow and subtract the advance payment from the invoice. The problem: because the advance isn't linked to the sales order, the sales order stays in status 'invoice exception'
The reason for my workflow: As long as the customer doesn't pay the advance, I do not start his project in my calculating software. So only after he pays, I will start a new project, then I do an export (custom interface) from my calculating software to OpenERP and automatically a sales order (and some other cool stuff) is then created in OpenERP. So, for my accounting, I need to create an advance invoice manually in OpenERP.
How can I set the sales order to 100% paid and avoid the invoice exception? My workflow can 't be changed.