Organizations on Version 2.4 of HomeKeeper (or later) who are using the Lightning user interface will deploy a custom domain to use custom HomeKeeper "calculations" components. This article explains what "My Domain" is and what HomeKeeper users can expect after setting it up.
In order to use the HomeKeeper's solution for Homeownership Service File, you will need to enable My Domain, and deploy it. This is a Salesforce feature with a two step process, that can be accomplished while transitioning to Lightning using the Lightning Experience Migration Assistant. Enabling "My Domain" is a best practice for security in Salesforce and HomeKeeper recommends that all user organizations set it up.
For step-by-step instructions to enable this Salesforce feature, set up My Domain using the Lightning Experience Migration Assistant. Or go to Setup>Company Settings>My Domain.
If you attempt to use or edit a Service File Record Page in Lightning without enabling My Domain, the HomeKeeper Field Set Components will not be available.
For more on setting up My Domain, see Salesforce documentation. If you experience any difficulty logging in after deploying My Domain to users, try clearing your browser cache.
Examples of viewing HomeKeeper records after setting up a custom domain with "My Domain"
Going forward, when logged into Salesforce to use HomeKeeper or another app, you'll see the custom domain instead of default numbers/letters from Salesforce. This will apply to Lightning and Classic.