QB Issue Resolution:
From your Dashboard click on the Gear Icon in the upper right, then choose Chart of Accounts
Find the account you want to Delete (it’s actually made “Inactive” and just hidden), then in the Action Column on the right click on the little arrow for the Drop Down Menu. Click on Delete and then Confirm.
Same basically for Classes. Click on the Gear and pick All Lists then Classes. Use the same Drop Down Menu to Delete (make Inactive) the Class you want to get rid of.
Resolution for Issue 'How do I delete classes and accounts I am no longer using?' available: Yes (Solved).
Source: Intuit Community forum.
How do I delete classes and accounts I am no longer using?: 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.Support for Chart of Accounts
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