Details: 

Bought and placed into service 2017. 50% rental 50% personal residence for duration. 

Lived there with spouse until 2019 when they divorced and she bought him out. 

Sold March 2023. 

I have attempted to link the sale to the home sale worksheet but I get the error that this is not possible for homes with less than 100% business use. I called support and was told (after much troubleshooting) that I will have to just turn error checking off and hopefully the IRS accepts it. This doesn't seem adequate to me so my question is, how do I calculate the exclusion (even if it only amounts to $125k since 50% business use) while still reporting the sale of the business property?