Cannot update supply type in WIP Operations using interface- Invalid or insufficient component subin

Hi,

We have customization to update supply type subinventory and supply type locator using WIP mass load.

It is working except for case when we try to update locator enabled subinventory with non locator enabled subinventory, it throws below error:

Invalid or insufficient component subinventory/locator information for inventory_item_id 22762 and subinventory MFGSMS

Eg:

Existing in system:

Component: 1234

supply sub inv: ABC

Supply Locator: A.1.0

Updating with below:

Component: 1234

supply sub inv: XYZ

Supply Locator:

Locator is null for XYZ.

We tried to manually remove locator and ran wip mass load, it worked as expected. So only issue is when changing locator enabled sub inventory to non locator enabled subinventory.