Can we group customers invoice of different Business Units?

Summary:

My client have a requirement where they want to consolidate all Invoices of a customer belonging to different Business Unit while sending the E-Mail delivery of Invoice to Customer. Have anyone know of a solution? is this achievable?

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Scenario:

Invoice 1 in Business Unit 1

Invoice 2 in Business Unit 2

Both Business Unit will have same From E-Mail

When we do "Print Receivables Transactions", system is sending two different emails. Is there any way we can combine this into one email?

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