After you sign in to Miigen, you will be taken to your Private Homepage. Here you can do a lot of different things, including adding new Memories.
There are two different ways of adding Memories on Miigen. You can either add a brand-new Memory or import a post from Facebook.
On your Private Homepage, there are four buttons under the ‘Add to your Miigen’ heading. You should be able to select the ‘Add Memory’ option to add a brand-new memory to Miigen or select the ‘Import Post’ button to connect to Facebook and choose a post to import.
Importing Facebook posts requires access to your Facebook timeline. If you have not already granted Miigen permissions to access this, additional permission will be requested.