Customers.md

 # Clients / Customers / Companies
 
+Unlike the other data, customers (private individual or company) are store in a specific manner, so that
+
+* private customers (=client) can log in
+* a client may have different permissions
+* a vehicle may be owned by either a private customer or a company
+
+This means that we added plugins to the general queries and transitions, to make it easier or possible at all to administrate and query the data correctly.
+
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 ## Customers - Clients vs Companies