QB Issue Resolution:

It is definitely a cookie issue.  Here is a post I created (it happened to me and a couple of clients–I had to do this for them).  In the post it steps you thru how to clear the cache.  I had it happen once and I did these steps and it has not happened again.  But I had not cleared my cache for awhile.  You can sometimes just create a chrome user for just qbo.  then if there is no browsing on this user, you will have less of this.  Or regularly clear the cache.  Chrome is the recommended browser, but sometimes, I switch to firefox when weird things start to happen in my program.  But I haven’t had to do that for awhile.  I hope the video helps.  In Chrome, there are 3 lines on the right side (if you use windows, I have a Mac desktop).  Click that and settings to clear the cache.

 

PC:

On your computer, open Chrome.
On your browser toolbar, click More Moreand then More Tools and then Clear Browsing Data.
In the “Clear browsing data” box, click the checkboxes for Cookies and other site data and Cached images and files.
Use the menu at the top to select the amount of data that you want to delete. Choose beginning of time to delete everything.
Click Clear browsing data.

Resolution for Issue '502 Bad Gateway' available: Yes (Solved).
Source: Intuit Community forum.

502 Bad Gateway: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

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