Not found

Why it happened

• The ID is real, and it sits in the other environment. A sandbox key cannot see live data.
• The ID belongs to a different tenant.
• The record was deleted.
• You sent your own external_id where the call wants the QuotaStack UUID.

How to fix it

1. Check that the key environment matches the data you want.
2. Use the by-external-id twin of the call when you hold your own ID.
3. List the collection first, to see what is really there.

Which calls return this

• GET /v1/customers/{id}
• PATCH /v1/customers/{id}
• DELETE /v1/customers/{id}
• GET /v1/customer-by-external-id/{external_id}
• PATCH /v1/customer-by-external-id/{external_id}
• DELETE /v1/customer-by-external-id/{external_id}
• GET /v1/customers/{customer_id}/credits
• POST /v1/customers/{customer_id}/credits/grant
• POST /v1/customers/{customer_id}/credits/adjust
• GET /v1/customers/{customer_id}/overage
• GET /v1/customer-by-external-id/{external_id}/credits
• POST /v1/customer-by-external-id/{external_id}/credits/grant
• POST /v1/customer-by-external-id/{external_id}/credits/adjust
• GET /v1/customer-by-external-id/{external_id}/overage
• GET /v1/entitlements/check
• GET /v1/customers/{id}/entitlements/{metric}
• GET /v1/customers/{id}/entitlements
• GET /v1/customer-by-external-id/{external_id}/entitlements/{metric}
• GET /v1/customer-by-external-id/{external_id}/entitlements
• POST /v1/customers/{id}/entitlements/{billable_metric_key}/increment
• POST /v1/customers/{id}/entitlements/{billable_metric_key}/decrement
• POST /v1/entitlements/consume
• POST /v1/customer-by-external-id/{external_id}/entitlements/{billable_metric_key}/increment
• POST /v1/customer-by-external-id/{external_id}/entitlements/{billable_metric_key}/decrement
• POST /v1/subscriptions
• GET /v1/subscriptions/{id}
• POST /v1/subscriptions/{id}/upgrade
• POST /v1/subscriptions/{id}/downgrade
• POST /v1/subscriptions/{id}/cancel
• GET /v1/subscriptions/{id}/overrides
• POST /v1/subscriptions/{id}/overrides
• PATCH /v1/subscriptions/{id}/overrides/{billable_metric_key}
• DELETE /v1/subscriptions/{id}/overrides/{billable_metric_key}
• POST /v1/reservations
• GET /v1/reservations/{id}
• POST /v1/reservations/{id}/commit
• POST /v1/reservations/{id}/release
• GET /v1/plans/{id}
• GET /v1/plan-variants/{id}
• POST /v1/plans/{id}/variants/{vid}/entitlements
• PATCH /v1/plans/{id}/variants/{vid}/entitlements/{billable_metric_key}
• DELETE /v1/plans/{id}/variants/{vid}/entitlements/{billable_metric_key}
• GET /v1/billable-metrics/{key}
• PATCH /v1/billable-metrics/{key}
• POST /v1/topups/grant
• POST /v1/webhooks/events/{id}/redeliver