I see this is your first question so let me take the time to welcome you here to the Intuit Community. I can help set up your QuickBooks Desktop (QBDT) 2019 to a multi-user mode.
To start off, please note that the recommended multi-user set up is having the company file […]
Resolution for 'company data file issue: 'Multiple users for QB 2019 Desktop' available: Yes.
The company data file 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 company data file issue yourself by looking for a resolution described in the article. If it is a complex company data file issue or you are unable to solve the issue, you may contact us by clicking here or by using other company data file support options.
For more information about resolving issues related to company data file in Quickbooks/QBO or to get support for the issue 'Multiple users for QB 2019 Desktop', click the link below: