A few days ago I started to receive multiple order notifications on my iphone. After trying everything recommended online I decided to delete the app and reinstall it. Now when I go into Notifications and Shopify App there is not a toggle for notifications at all. How do I get the notifications toggle back? I went into the app and went to settings and store notifications and it states I need to allow notification on my phone settings but when I go into my phone settings there is no toggle. I contacted Shopify and they were not able to fix it. Any ideas?
Did you get any answer from Shopify?
I am having the same issue. Two days ago, I undated my iphone to IOS 16.2. Then no longer received shopify notifications on my phone. All my other notifications are still working. I tried everything I could find to fix it with no success. Then, I deleted the Shopify app and reinstalled. Now, I have the same issue as you.
I reached out to Shopify with the issue. They are now saying it is a known issue and will get back to via email. They would not give me any ETA.
Unfortunately I have not heard back from them. Yesterday I was too busy to follow up. I will follow up today and let you know if I have any success.
Shopify is now asking for screenshots. I just sent them. If you have any suggestions I would appreciate it.
I had the same issue and was just able to fix it following these instructions:
https://www.youtube.com/watch?v=QiN3QXlN0GQ
Solution 2: Clear Shopify App cache files – that is what worked for me.
This is the latest message from Shopify:
I really appreciate you for trying to troubleshoot this on your end.
Upon checking, it appears that there was an update by our developers advising us that we experienced an internal that caused the error. Our team is completely aware of this and now the issue has been successfully resolved. We understand how important this matter is for your business so we in Shopify sincerely apologize for any inconvenience it has caused. Currently, all systems are now working as expected.
In the meantime, please close the app and open it again. You should then be prompted to enable notifications.
If the above step is done and you are still having issues, please do let me know so I can have our Technical Support Team look into this for you. I know it’s a bit of work but your kind understanding is greatly appreciated 
Closing and re-opening the app did not work. I reboot the phone and now I am able to turn notifications on. Now, I just have to wait for an order to see if it really works!