Customers as codes is the default for orders, customers and newsletter subscribers. You can change it per shop and per connection on the Dashboard. While it is on, your AI assistant sees customers as codes such as CUST-K7QF2MX3PA instead of names. Paste a code here to see who it is. The answer is shown to you only. It is never sent to the assistant.
Each lookup is recorded in the audit log with the code and the shop, never with the name.