QB Issue Resolution:
Allow me to chime in or a moment and share some additional information about the Admin user access in QuickBooks Online (QBO).
At this time, QBO doesn’t have the option to let only the Admin access Applications. Once a user is set up as a Company Admin, they can do and see everything in your account.
For future reference, you can check out these articles for further guidance:
Resolution for Issue 'How can a non-admin user on Quickbooks Plus plan access and manage apps?' available: Yes (Solved).
Source: Intuit Community forum.
How can a non-admin user on Quickbooks Plus plan access and manage apps?: 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 additional information
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