I once did weeks of work trying to unpack what my employer meant by the term "customer" - if your customers are large companies with hundreds of legal entities

I once did weeks of work trying to unpack what my employer meant by the term "customer" - if your customers are large companies with hundreds of legal entities and hundreds of locations across the world things can get pretty complex pretty fast e.g. does "never two contracts running at the same time" mean that you can't have a contract with a subsidiary and another separate subsidiary of the same parent (which might make sense for credit checking purposes)? What about subsidiaries in different countries? What about partly owned subsidiaries...