How to obtain INTRACOMPANY elimination inside one LE

Summary:

We have multinational Group of Companies. They have intercompany transactions and eliminations.

But at the same time, they ask to have INTRACOMPANY eliminations, which means lower level of LE, for example between Branches. How it can be obtained? Current Accounting Flexfield:

Could you advice please, what is the best way to solve it? Thank you

Content (required):

Branch 1 from LE1 is sender AR Invoice -----> Branch 2 from LE1 is Receiver AP Invoice

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