How to enter subinventory while receiving Inventory destination type PO in My receipts

Summary:

Content (please ensure you mask any confidential information):

There is no sub-inventory and Locator fields to enter while receiving the Inventory destination type PO in RSSP My Receipts (New). Instead it gives an error asking to setup defaults.

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable): 26A