My store is a closed community store where customer require registration before even accessing the the homepage.
We use an external private app for that, or manual customer creation
Yesterday, we had a customer who placed an order even though their account is supposedly not active yet.
The order wasn't placed manually and the account wasn't closed after creation.
On the customer creation history, the mention " Customer was created" doesn't contain any origin.
Any idea what happened here ?
Welcome to Shopify Community.
You should contact your external private app support/developer.