Aggregating Snapchat content is a bit different than other social content. Per usual, only public-facing content is accessible via Snapchat, but, in addition, it must also include a tagged location, as direct links can only be found via https://map.snapchat.com/.
Once the desired content is located on the map, you will need to click the Share button to copy the direct link to the Snap:
Once the direct URL is acquired, you can manually aggregate the Snap via the Create Tile section of Nosto.
For any further questions or queries, please send an email to support@nosto.com and our support team will get back to you.