I have exactly the same problem. Ive spent over 12 hours on the phone with tier 1 and tier 2 folks from both the desktop side of the Quickbooks company and their time sheets division bought from T Sheets. (T Sheets is the third party that I'm attempting to integrate with) They are totally out of suggestions as of 7/29/2021. I also requested a call from the 3rd tier folks but have not heard back for two days. I'm afraid that they are not throwing much resource towards this issue since the online version is the Big Daddy money maker for them.
