Is it possible to import opportunities?
Yes. It is possible, but I believe Opportunities are listed as a “restricted import” by default, so you’ll need to contact Infusionsoft support and request that they enable it:
In addition to what @Greg_Jenkins has suggested, when you do, if you need them to have various stages assigned then you would need to map up the id’s for the new app for those stages too.
You can take a look at Data2CRM service. In contrary to the long and complicated manual import, the tool offers an automated migration with the ability to map the opportunities you want to move to InfusionSoft.
If it is interesting for you, try out a free Demo or find more info about direct Infusionsoft data import.
Hope it will help you!
With respect, Yuliia