We highly recommend charting these transactions out ahead of any multi-company ERP implementation so your solution architects can help plot out the best path forward to configuration in your system. You should also use these process flows to indicate when documents are necessary, which legal entity would generate them, and who would receive them. In some intercompany scenarios, for example, documentation is required to cross borders. Knowing these details can also help to plan intercompany eliminations and other configurations necessary to support your requirements.
It is important to understand that decisions made during your implementation will have long-lasting impacts to how your organization operates. Making carefully-planned choices will ensure that the system you are investing in now will serve your multi-entity organization long into the future; the first step in making these decisions is this type of planning exercise. Working across many legal entities adds several flavors of complexity to design so make sure you have the right team doing these assessments.
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