The Instagram report shows how far your content reaches in terms of reach and impressions. The report is divided into two parts:
Make Influence posts: these are the posts where you use your unique hashtag on your stories and in your feed posts. Here we can track the reach and impressions of the specific posts where you use the hashtag. This gives you an insight into how well your advertising content is performing.
All posts: these are all the posts you have posted on your Instagram - both those where you have used your unique hashtag and those without your unique hashtag.
Reach: is a term that refers to the number of unique people who have seen your content overall.
Impressions: is a term that refers to the total number of times your content has been viewed.
Remember to filter using the funnel icon in the top right corner so that you can see data from the desired time period.