Colombia: Sales Order Pricing Procedure and account determination

Hi, my company is on its way to a rollout in Colombia, and now I face the following problem:

The information I get from locals is that my material account determination needs to be split into two g/l accounts but this is usually assignated one material => one g/l account determination. The local company as been posting this to their local system into accounting manually, so they can do whatever they want to, but now we're implementing SD, since I'm not an SD expert - although I am the one implementing this... is there a way to achieve this? I don't seem to find anything related to this.

Furthermore there is no location for Colombia: sales order princing procedure.

Any thoughts/help on this?