Hey everyone,

I am trying to create a new account in my sandbox to test some duplicate and matching rules for lead conversion into new contacts or adding to an existing contact.

But when I click to create a new account, I get asked to create a 'remote site setting' ... I have no idea what this is or why I am being asked to create this.

Does anyone know what I need to do here?

Ultimately I want to block duplicate contacts and leads from being created. I am exploring other options beyond matching and duplicate rules as they don't always work or catch everything 100% of the time.

Thanks :)