Sandbox provisioning on sandbox.momodeveloper.mtn.co.rw is failing for my Collections subscription (started 2026-10-14). POST /v1_0/apiuser with my subscription key returns 404 "Resource not found". POST /v1_0/apiuser/{id}/apikey returns 500. Without a key the gateway returns 401, so the route exists. Activity IDs: e2bd02ef-395b-4c72-afee-30c8117b00f9, 5dd1aca2-f6ab-420d-96b0-6411db42e2cc, 7b12d60c-5f5c-4cd4-b37a-52910d78b43e. Please enable sandbox user provisioning for this subscription.
Question
Sandbox provisioning on sandbox
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