we are having code for outlook add in and currently we are running also. But now we want to change the description of the outlook add-in. If the above is not possible then please give steps to ad...
All of the guidance for publishing to AppSource is detailed here: Make your solutions available in Microsoft AppSource and within Office - Marketplace publisher | Microsoft Learn.
You'll have to create an account in Microsoft Partner Center and submit your add-in for the approval process.