The easiest way to give your users access to Plauti Deduplicate is with the 'Plauti Deduplicate' permission set. The advantage of using the Permission Set is that it is updated automatically whenever new classes, tabs etc are added to Plauti Deduplicate. This means you don't have to make any changes after future updates where new classes might be introduced.

However, with the Plauti Deduplicate permission set, users have access to all of Plauti Deduplicate, including the settings in Deduplicate Setup. If you don't want your users to access certain PD pages, such as Deduplicate Setup or Deduplicate Job, make sure to deny them access to those pages. 

Alternatively, you can grant your users user access via profile settings‍ or a custom permission set instead. Note that profile settings and custom permission sets need to be updated manually whenever a new class, tab etc. is added to Plauti Deduplicate.

Grant access with the Deduplicate Permission Set

To grant users access to all of Plauti Deduplicate:

1. Go to Salesforce Setup > Users > Permission Sets.
2. Click the Plauti Deduplicate permission set.
3. At the top, click Manage Assignments.
4. Click Add Assignments.
5. Select the users you want to assign the permission set to.
6. Click Assign.

You have now granted full access to Plauti Deduplicate, including all classes for current and future PD releases, to the selected users.

To deny access to certain PD pages:

1. Go to Salesforce Setup > Users > Profiles.
2. Find the profile you want to edit.
3. On the profile, go to Object Settings.
4. Find the Plauti Deduplicate tabs you want to hide and edit. 
5. Under Tab Settings, select Tab Hidden.
6. Click Save.