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This blog post, originally published in 2016 with an update in 2021, serves as a comprehensive starter guide for businesses new to Instagram.
It outlines nine essential steps: 1) Sign up with a business-representative username; 2) Add profile photo, bio, and website link; 3) Switch to a business profile (requires a Facebook Page); 4) Link to third-party sharing sites for cross-posting and creating news stories for Facebook followers; 5) Announce your Instagram presence to Facebook followers; 6) Use and search hashtags to connect with audience; 7) Start sharing photos across networks; 8) (missing step); 9) Promote high-performing posts from the mobile app.
The post emphasizes using support links for each step and checking the Instagram for Business blog for brand examples.