Hi Jaideep,
Thank you for your help! Your suggestion is very useful, however I am wondering if instead of triggering another rule to run an internal transfer, it can instead just reserve stock in the other sub-location rather than needing to move stock around?

i.e if no stock is available in WH/StockB, reserve stock in WH/StockC?

Hi Emma,

Systemically the rules work sequential and the product reservation happen basis that (i.e first location A, then location B, then location C..). While you might not necessarily have to move stock physically between locations, you would require to validate the operations in reverse sequence for the system to track. (e.g You could ship location B to customer, while validating operations location B to location A followed by location A to customer)

Couple of other considerations

1. It might not always be either location A 'or' location B.. it could also be location A "And" location B in the event of partial quantities

2. Operation (Internal Transfer) - you can always change the operation or create new to identify better with the business process. At the physical level the intent is to intimate a transfer and track completion.

3. If the need is reservation, you could also consider use of lot/ serial number functionality with FIFO, LIFO or expiry dates for Odoo to reserve

These are concepts which you would require to apply specific to your business context and need.