There is a data set missing on the 2nd line.  

When i delete this line, the same error occour.

Did you unacknowledge to delete and then acknowledge after the edit?   What are the parameters for the proposal?

Hi @CLaud,

Did you check if the cash Account and Invoices have the same currency?

Kind regards,
Shanuka.

Yes i have unacknowledged to delete and then acknowledged after the edit.

And i also checked the currency, cash account and Invoice is both in Euro.

For the parameters for the proposal i use no special options.

Is it possible there is a date conflict (ie, payment date in a period that is closed)?

hi @CLaud,

I also experienced with same error when the payment proposal detail doesn’t have value for payment method field. However, this would not occur if you entered the payment method as input parameter. try with value for payment method field. Refer below screen preview for easier reference.

Best Regards

Narmada