QB Issue Resolution:

See link below & discuss with your accountant. They can advise you best!

https://www.irs.gov/businesses/small-businesses-self-employed/home-office-deduction

The real key it has to be exclusive use for business.

Resolution for Issue 'Home Office Rent… Confused' available: Yes (Solved).
Source: Intuit Community forum.

Home Office Rent… Confused: 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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