Hi everyone,

We are a single verified business (a clinic) trying to connect our OWN WhatsApp Business app number to the Cloud API using coexistence via Embedded Signup. We are not a tech provider and don't onboard other businesses.

As soon as the Embedded Signup popup opens, before any number can be selected, it shows: " can't onboard customers right now".

Setup: - Business portfolio verified (since April 2025) - App ID 1790412518749491, published (Live), Business type - Embedded Signup v4 configuration with featureType "whatsapp_business_app_onboarding"; FB.login with response_type "code", override_default_response_type true - whatsapp_business_management and whatsapp_business_messaging currently at Standard Access (App Review not yet submitted) - Message templates approved in our WABA - Example session ID: 01a13508-3bda-700c-bc6b-0c4f63b76088

Questions: 1. Does Embedded Signup (including coexistence) require Advanced Access / App Review even when onboarding only our own business? 2. Is this message typically an integrity/limit restriction on the business, and how can it be checked or lifted? 3. Is there a supported way for a direct (non-tech-provider) business to onboard its own WhatsApp Business app number with coexistence?

Thanks!