In inventory management, when an picking document is validated that moves a product from location "A1" (internal to warehouse A) to destination "T_B" (transit), another inventory document in a "ready" state is created containing the movement of that product from "T_B" to "B1" (internal to warehouse B). This is for Odoo 15 Community Edition. I considered routes and rules but haven't been able to resolve it, so here's how I did it:

* I created internal locations A1 and B1 within their respective warehouses and T_B as a transit location.

* I created two inventory operations: the first, "Shipments to B," of type "Delivery" from A1 to T_B, and the second, "Inter-warehouse Operation" of type "Receipts" from T_B to B1.

* I created a route, "Flow Warehouse A to Warehouse B Via Transit," applicable to "Warehouses," with two rules:

. Push To A1 to T_B

. Pull from T_B to B1

This didn't solve the problem.