Hi, 

I was wondering if it is possible to automatically add different payment terms depending on the type of order. for example, we have a couple of company rules. 

When a client has made a total purchase volume of 15k with our company, they get 30 days to pay, as long as they haven't reached 15k on their account, they have to pay immedeatily. 

Also, when a single order is more than 15k, they have to pay 25% in advance. when it's more than 15k they have to pay 35% in advance. (even if they have an account with more than 15k spending)

I have set up 4 different payment conditions, I know this works, I was wondering if there is any way to set these automatically if odoo recognises that the client has an account of 15k spending or more. otherwise we have to look at the reports every time we make a quotation. 

The same goes for the payments in advance, Is there a way that odoo can automatically set the payment condition  depending on the total value of that order?

or is this all custom work? 

thanks in advance!