To get started, make sure that your Instagram account is converted to Business Profile. The steps for this can be seen here.
Go to your business profile, select the photo you want to autopost, and tap the "share" icon in the toolbar.
You can then write your caption or copy in advance, with the character, hashtag, and tagging limits shown on the right corner as a guide.
Click Add Date and choose the day and time you want the content to be posted. Once done, click Add Queue. You will then see a preview of your work with the exact schedule of posting. You can Edit or Delete these later on if needed.
Create and plan as much content as you like. Watch the tutorial below!