FBM – routing orders to 3PL or My Warehouse

Hello – I am going to give some of my inventory to a 3PL to help with capacity. Can I create routing logic in Amazon so that if an order comes in and the 3PL has that SKU that they fulfill it, but if an order comes in with a SKU they don’t have that it flows to my warehouse?

Example SKUs

3PL: SKU 1, SKU2, SKU 3

My warehouse has: SKU 1, SKU2, SKU 3, SKU4

Order 1: 1 unit of SKU1 – that would go to the 3PL since we both have that.

Order 2: 1 unit of SKU1, 2 units of SKU3 That would go to the 3PL since they can cover it.

Order 3: 1 unit SKU1, 1 unit SKU4

That would flow to my warehouse since the 3PL doesn’t carry SKU4