Coexistence connects an eligible mobile WhatsApp Business App number to LiveCha while allowing continued use of the Business App. Availability depends on Meta's eligibility checks and the platform's enabled onboarding flow.
Use a real number already active in WhatsApp Business App. Have the phone available for confirmation, workspace administrator access, and a Facebook account with the required business asset access. A Meta developer test number is not a mobile Business App account for this flow.
A screen asking you to enter a number does not by itself prove that you are in the wrong flow. Check the full flow and final connection mode. If Meta does not offer a way to connect your existing Business App, contact your administrator to check eligibility and configuration. Do not delete the mobile account to force the flow to continue.
Sharing depends on the permission granted during onboarding and Meta's availability. A sync request indicator confirms a request, not that every historical message or contact has arrived. If Retry sync request is available, follow the on-screen time-window guidance. Do not assume a retry restarts the permitted window.
Number migration is not supported in the current connection flow. If the final mode is incorrect or authorization fails, use connection troubleshooting.