Your profile is where your personal details are stored in TeamLinkt. These are the same details for your league admin user, as well as any teams you may be added to for the team management app.
League Details are for your organization’s TeamLinkt account and will appear on things such as invoices, your website, and in online registration.
Pro Tip: The website field in the League Details section is the address users will go to when clicking the Website tile in the team management app. This goes to your free TeamLinkt website by default, but can be edited to any address you’d like.