At this time, the integration cannot connect previously-created Flipgrid content with a Canvas Assignment. If you wish to use Disco Library Topics or those created previously, you would need to use Flipgrid outside of Canvas.

Otherwise, we can suggest the following workarounds:

• Create a new Assignment on Canvas, and Flipgrid will automatically create a new Topic that's connected to it. You can then edit this Topic from your Flipgrid educator account, to copy over the details from an existing one.
• Add details to the Canvas Assignment instead of the Flipgrid Topic, and then duplicate the Assignment instead. Flipgrid will create a new Topic that's connected to the duplicate Assignment.

Please see our integration guide for full instructions on how to create a new Canvas Assignment that uses Flipgrid.