Sydney

@No1 It's almost certainly jumping on someone else's turf if social media is not your responsibility.

Your company probably already has social media accounts. It's someone's job to maintain them.

The way you setting up social media accounts without asking them is likely to be read is: "I think you're incompetent at your job and I'm deliberately undermining you."

Worse, if that's the case, it could also be interpreted at undermining your boss.

If I were in your position, what I'd do is pull together a detailed pitch deck in PowerPoint outlining why the business should use Instagram, the potential benefits.

Then ask to have a meeting with the relevant stakeholders where you present it, and offer to manage it yourself.