Yes, you’re right. QuickBooks Desktop Enterprise 2014 and later versions let you add up to one million names (customers, vendors, and employees) and a million items as well (inventory, non-inventory, and service). This includes the active and inactive names and items already.

 

I’ve got you an article that you can check: 

Resolution for 'and employees issue: 'Maximum employees, etc.' available: Yes.

The and employees 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 and employees issue yourself by looking for a resolution described in the article. If it is a complex and employees issue or you are unable to solve the issue, you may contact us by clicking here or by using other and employees support options.

For more information about resolving issues related to and employees in Quickbooks/QBO or to get support for the issue 'Maximum employees, etc.', click the link below: