Install SimplePerm
Installation takes about a minute.
Find SimplePerm on AppExchange
Go to the Salesforce AppExchange and search for SimplePerm. Click the listing, then click Get It Now.
Choose Your Install Option
Salesforce will ask who should get access. Pick Install for Admins Only. This keeps the package visible only to System Administrator profiles until you explicitly grant access through a permission set.
You can choose "Install for All Users" instead, but most orgs are better off starting with admin-only access and then assigning the SimplePerm_Admin permission set to specific people.
Wait for Installation
Click Install. Salesforce runs a few checks behind the scenes, and the package usually finishes within 30 to 60 seconds. You'll get a confirmation email.
SimplePerm's PostInstallScript automatically creates a default configuration record (SimplePermConfig__c) with the correct API version (62.0). Nothing to configure here.
SimplePerm is free to install and use. No hidden costs or paid feature gates.
What's Next?
One more step before you can start migrating: assign the SimplePerm_Admin permission set to the admin users who need access.