Selling professional services through the commercial marketplace

Is it possible to sell professional services through the commercial marketplace?

Software that's built on or built for our cloud services can be transacted through the commercial marketplace. Any form of professional services – external to the solutions offering - would require unique terms between you and the buying party.   
 
This form of agreement can be mentioned and supported in the terms and conditions of your listing. The invoicing of these services will fall under the responsibility of the ISV.  
 
Whilst professional services are not yet transactable. Stactize best practices suggest using metered dimensions to invoice supplementary services such as consulting, configurations, add-ons and/or additional usage.