basalt / tenancy/src / TenantAlreadyExistsError

Class: TenantAlreadyExistsError

tenancy.create() (or basalt tenant:create, or a source's create()) for an id that already exists. 409: the request conflicts with a record that is there, and repeating it will not change that.

Refused rather than overwritten. Creating over an existing tenant used to go through the durable sources' upsert, which replaced the whole record — the owner, the plan, a suspended status — and then ran onProvision again on storage that already held a customer's data. A signup form that submits twice must not be able to do that.

status is the existing record's, when the caller knows it. A failed or provisioning tenant is the one case where "create it again" is a reasonable instinct, so the message names the method that actually finishes the job.