You are facing error message when try to create a down payment with external payment via web service.
SAP Business ByDesign
Payment Control is only concerted about how the payment is made. Down payment document is not a form of payment and Down payment also requires payment.
You can only create the sales order and maintain the external payment in the sales order first. And then create the down payment which linked to this sales order.
To create a down payment which linked to this sales order, you can refer to the below XML as sample:
<Name>Test Down Payment with sales order</Name>
Please note that the type code refer to the sales order type. The ID is the ID of the sales order in question and the UUID is the actually UUID of the sales order. All of these are needed.
Once this is done it will create the down payment that is linked to the sales order.
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External Payment, Sales Order, Down Payment , KBA , SRD-CRM-ORD , Orders & Contracts , Problem