Error On Phone App

I've checked our records, HMA2. I haven't seen any open cases similar to yours. 

I'll share five steps to fix app-related issues. Check this article about troubleshooting Quick-Start Guide for the QuickBooks Online app for the detailed instructions. 

Once done, try to create an invoice again.

Feel free to keep us updated after trying the steps. We're just right here to help you. 

I have been struggling with this same problem for about two weeks now. I go to create and invoice on the mobile app for my customer and I click on "add product or service" I search for my product and get "error adding item" At first I thought it was a problem using Android version 9 because I had just got a new phone. The app worked perfectly with my new phone for about two weeks then this error started happening. The error only happens on certain items but they are items that I use consistently and have been in my quickbooks for a long time. I have uninstalled the app and reinstalled it many times. I have signed on as different users. I have had that user sign-on a different phone,  I have restarted my phone. Yesterday as I continued to investigate the problem my android phone using version 8 gave me the "error adding item" when I making an invoice. It seems to be intermittent and doesn't happen every time but it is happening enough that it is a disruption when standing in front of a customer and you can't complete their invoice to collect their payment. I have an Iphone user that is not affected by this problem.  It seems to be android users and it doesn't seem to matter what version. Let me know if you can provide some help.