Multiple Active Primary Routes for Nonshippable Financial Orchestrator

Summary:

How to correctly drive correct primary route (and related financial route) having multiple lines active inside one financial orchestrator

Content:

we have setup a Non Shippable orchestrator flow with 2 active primary route. both lines are having the same Selling Business Unit but are having different Fulfilling Business Unit

Example:

Primary Route line 1:

• Selling Business Unit: BU1
• Fulfilling Business Unit: BU2

Primary Route line 2:

• Selling Business Unit: BU1
• Fulfilling Business Unit: BU3

is possible to pilot the different primary route? is there some fields in the Sales Order that drive this behaviour? considering that the qualifier is the same (because there is only one financial orchestrator) the only way is to somehow specify the fulfilling BU inside the SO?