Customer Credits - Commet

Customer credits are monetary adjustments for a specific customer and currency. Commet applies them FIFO before tax to eligible recurring invoices. Use customer credits for service recovery, a negotiated commercial credit, or an account adjustment. They are not plan credits and cannot be consumed by usage events.

Grant credit

Open a customer in Customers to review their billing context. Grant credit through the API when the adjustment originates in your application or support workflow:

const credit = await commet.customers.createCredit(
  {
    id: 'cus_01J...',
    amount: 2500,
    currency: 'usd',
    reason: 'Service recovery credit',
  },
  { idempotencyKey: 'credit-acme-2026-08-16' },
)

amount uses the currency’s smallest unit. A USD amount of 2500 is USD 25.00. Always send a reason; it becomes part of the credit’s audit trail.

Inspect remaining credit

const credits = await commet.customers.listCredits({ id: 'cus_01J...' })

Credits only apply to invoices in the same currency. If a customer has USD and BRL subscriptions over time, each currency keeps an independent balance.

Revoke unused credit

const revocation = await commet.customers.revokeCredit(
  { id: 'cus_01J...', creditId: 'crd_01J...' },
  { idempotencyKey: 'revoke-credit-acme-2026-08-16' },
)

Revocation removes only the unallocated remainder. It does not rewrite invoices that already consumed part of the grant. For product allowances, use Credits and Credit Packs. For access without billing, use Plan Grants.