FAQ

Should principal_id be a user id?

Use a user id only if billing is per-user. For B2B products, use an org or team id.

Can I retry a timed out write?

Yes. Retry with the same Idempotency-Key and the same body.

How do I obtain billing_account_id?

Use POST /mgt/v1/token/issue from your backend and store the mapping.