If you are having any trouble with agency single sign on (SSO) due to the iPhone browser Safari blocking cookies, this is how you can disable that setting:
Settings > Safari > Advanced > Uncheck "Block All Cookies"
If you have never tried the Microsoft Edge browser on your phone, it is optimized to work best with our agency SSO (prompts for your password less often), since our agency uses Microsoft infrastructure for our accounts.
Download the Edge browser app on the Apple App Store.