How to setup supplier bank accounts for domestic and international payments specific to each country

Our customer is based out of Europe and is part of agricultural financing sector. they have suppliers from all over the world. Sometimes payments are rejected because of the settings in suppliers bank accounts.

We followed the document

and I would like you to confirm the following assumptions I have taken from the document

Assumptions

• If supplier country at address level = Bank account country → domestic payment
• If domestic → no need of bank name or branch number
• If supplier country at address level ≠bank account country → international payment
• If international → needed to check box Allow international payments
• If check box Allow international payments →