1. From Setup, enter Profiles in the Quick Find box, then select Profiles.
2. Select a profile.
3. Depending on which user interface you’re using, do one of the following.Enhanced profile user interface: Click Custom Permissions, and then click Edit.Original profile user interface: In the Enabled Custom Permissionsrelated list, click Edit.
4. Enhanced profile user interface: Click Custom Permissions, and then click Edit.
5. Original profile user interface: In the Enabled Custom Permissionsrelated list, click Edit.
6. To enable custom permissions, select them from the Available Custom Permissions list and clickAdd. To remove custom permissions from the profile, select them from the Enabled Custom Permissions list and click Remove.
7. Click Save.