Initiates one-time synchronization for the app.

• Use syncType=smb_app_state_sync to initiate contacts synchronization. On success, smb_app_state_sync webhooks are triggered for current contacts and future contact updates.
• Use syncType=history to initiate message history synchronization. If the business has shared history, history webhooks are triggered.

Important:

• This step can be performed only once.
• To perform again, customer must offboard and complete Embedded Signup again.