You can claim your Instagram, Etsy, or Youtube account to let people know where they can see more from you. If you have a Pinterest business account, claiming these channels will give you access to analytics on all Pins saved from your claimed account. Learn more about claimed account analytics.
If you're claiming a YouTube account, Pinterest may ask for permission to manage the account. This is needed for Pinterest to access your channel ID and identify your videos, but Pinterest will not edit your video content in any way.
Feel free to head over to the full Help Center article on Claiming your Instagram, Etsy, or YouTube account. Did you visit the article and still need help? Ask your question here to see if the community can help.