We’d like to understand what you mean by making the Listings app work for the iPad Pro? Microsoft Listings is currently available on the web only through Office 365 Business center, do you find the mobile web display to not work well on your iPad Pro?
Office 365 Business center teamMatthew Johnson commented
You have an app for the iPhone for Listing but does not look good on iPad Pro. This is the same for the Connections, Invoicing, Staffhub and Bookings. I would like to use these apps for my business but they are only available for iPhone. Make for iPad and I would use a lot more for the business.
Thanks for this feedback. We will consider making an optimized app for iPad Pro for a better big screen experience.
Thank you for your feedback, but we are not planning to provide an app for iPad or iPad Pro. Instead, we recommend that you use Business center from your iPad. For more information, see https://support.office.com/en-us/article/Send-invoices-on-the-go-with-Microsoft-Invoicing-98b7c6ea-bb16-45e4-ac9c-59dd0b1e41d5?ui=en-US&rs=en-US&ad=US