Should I contact Google support if I'm experiencing a 403 error on my iPhone?

While you can contact Google support, it's usually best to troubleshoot the problem yourself first. The 403 error often points to network-related issues or configuration problems on your device or network. If you've tried the troubleshooting steps, and the error persists, then contacting Google support might be necessary to investigate potential issues with your GA4 account or Google's servers.