How do I automatically sync Pushwoosh email unsubscribes with my database or CRM?

You can send unsubscribe data from Pushwoosh to your own database or CRM using either of these two methods.

Option 1: Event streaming (batch updates)

Use this method to receive unsubscribe data in batches rather than individual requests.

1. Open your Pushwoosh Control Panel and go to the Events section.
2. Activate the Email Unsubscribed (PW_EmailUnsubscribed) default event — this is the event that fires when a user opts out of your emails. If you also want app uninstalls and opt-outs on other channels, activate Device Unregistered (PW_DeviceUnregistered) as well; it is broader and fires on uninstall or an opt-out on any channel.
3. Go to Settings > 3rd party Integrations > Event streaming integration and enter your server address.

Events are delivered in batches, and the thresholds depend on the transport you choose:

• HTTP: a batch is sent when at least 100 events are ready, or once an hour since the last transmission — whichever happens first.
• gRPC: a stream is opened when at least 1,000 events are ready, or once an hour since the last stream — whichever happens first.

Option 2: Customer Journey webhook (real-time updates)

Use this method to update your database immediately when a user unsubscribes.

1. Go to Customer Journey and create a new journey.
2. Add a trigger-based entry element and select PW_EmailUnsubscribed as the trigger event.
3. Add a Webhook element right after the entry element.
4. Set up the webhook to send a POST request with a JSON payload (containing the email address) to your server.