How to prevent manual allocation from a specific subinventory when using on-hand material status R12

Hi all,

We have the following issue in Oracle R12.1.3:

- We are using on-hand material status for the organization.

- We don't use automatic allocation on the Batch.

- We would like to prevent manual allocation from a specific subinventory during manual allocation.

Our main goal is that we use this subinventory as an external warehouse and the goods should first be (also physically) transferred to the raw material subinventory.

I hope somebody can provide me some information how to possible handle this or even better, how to solve my issue.

Thank you very much for all your input.

Kind regards,

Gerard Nieuwstad