Problem:

There is a setting in Company\Invoice\General called “Based discount on Gross amount” meaning that the payment discount is either calculated over the Gross amount (ON) or over the invoice amount ex. tax (OFF). However, this applies to both customer invoices as well as supplier invoices. Currently we have the situation where we have some suppliers calculating the payment discount over the invoice Gross amount and some which calculate it over Nett invoice amount. Needless to say this should be a setting on the payment terms, not a single setting set for an entire company. 

Does anyone else have issues with this?