Does anyone know if any of the CPQ's packages on the appexchange work with a custom contracts object?

Hi! Marie Arkoulakis (LL Global) ,

Refer to the link below:

https://appexchange.salesforce.com/appxListingDetail?listingId=a0N3u00000ONf3VEAT

I hope you find the above solution helpful. If it does, please mark it as the Best Answer to help others too.       

Thanks and Regards,     

Suraj Tripathi