The app on my ipad says I have 5 of an item in my inventory so I went to my shelf but had 0. Then I logged into the online version of square up and there it says I have 0. How can I get these two to sync?
Are you sure the app on your iPad has refreshed itself lately? Maybe its information is out of date. I'd close the app, then shut down the iPad and reboot it, then sign back into the app. This may possibly solve the problem and if not, make sure you're logging into the same account and location on the iPad as the online account and location.
If none of this helps, you'll need to contact Square's support so they can look at your account to see what's going on:
You'll need your customer code to call. Follow the instructions below on how to get it.
Click “More”
Click "I don't see my issue"
Click "Call Support"
Write down your Customer Code
Call 1 855 700 6000
Good luck!
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