If a user requires access to metadata but not to data, enable the
new Modify Metadata permission to give the access the user needs without providing access to
org data. Users can create, edit, and delete org metadata but not org data. Users must have
appropriate access rights to the metadata they’re trying to modify. Modify Metadata is enabled
automatically when the Deploy Change Sets permission is selected.
Where: This change applies to Lightning Experience, Salesforce Classic, and all
versions of the mobile app in Professional, Performance, and Unlimited editions.
Some metadata types currently require the Modify All Data permission. If a user doesn’t also
have the Modify All Data permission, updates of these metadata types fail. The Modify Metadata
permission is beta when enabled without also enabling the Modify All Data permission.
Why: For example, to deploy change sets, users previously had to have both the Deploy
Change Sets permission and the Modify All Data permission. Users now need only the Deploy
Change Sets permission and the Modify Metadata permission to deploy a change set.