Hello there, @btb67.
I recognise the urgency of resolving this so you can get back to creating customers in QuickBooks Online (QBO). The QBO mobile application can occasionally behave unexpectedly because of overloaded app data. To sort this out, I recommend performing some quick steps to fix most app-related issues. Here's how:
For Android devices:
For detailed steps, kindly visit: Fix common errors in the QuickBooks Online mobile app for Android.
If you have an iOS device, the following are the steps to follow:
Moreover, I'll also share this link that can serve as your reference to help you manage customer information in QuickBooks: Add and manage customers in QuickBooks Online.
I'm looking forward to getting this resolved. Feel free to leave a reply if you require further assistance with creating customers in QBO. The Community team always has your back. Have a good one.
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