What is the default time between synchronizations in 1Password SCIM Bridge for Google Workspace?

@Anis my apologies for the delay in responding! Thanks for the bump.

How to check if the push notification are sent from Google ?
The best way to check this would be to download the bridge logs that can be obtained on the SCIM bridge web UI, and then seeing if you are getting requests to /workspace/Users and /workspace/Groups

My understanding is that it's Google that push an update to the SCIM bridge ? Am I right ?
That's right. When you set up the bridge with workspace, part of the configuration is describing to Google how it can ping the bridge when updates happen

I face the issue that 1Password groups are not updating when the corresponding Google Groups is updated.
It happen only once a day

That update once a day is happening because of the automatic interval sync designed to pick up anything missed by the notifications. If you're not getting notifications, that's definitely a problem. The first thing I'd check is that the bridge URL in your workspace configuration is set correctly; if that is wrong then Google won't be able to reach the bridge. You can check that that is correct by looking in your bridge logs as I mentioned above.

If your bridge is getting requests to those two paths, but the requests are failing, then that's likely a bug on our end. Restarting your bridge may remedy those issues, but it depends on what the underlying cause is.

If your bridge is not getting requests to those paths, then the URL is simply wrong. Ensuring that that URL is set to the URL your bridge is publicly accessible to should fix it.

Hope that helps, let me know if you need any more clarification or if that doesn't resolve your issue