Incorrect Legal Entity assigned to invoice by Payables Agent

Summary:

We have a single BU that shares multiple Legal Entities, and these Legal Entities share the same addresses.

Document IO is not recognising the Legal Entity, despite multiple training attempts - every time the default LE for the BU is chosen.

What can be done to ensure the correct Legal Entity is selected?

I have raised an SR but have received very generic responses and none of the suggestions are working or appropriate.

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