Request Login Access from Subscribers | First-Generation Managed Packages | First-Generation Managed Packaging Developer Guide

To log in to a subscriber org, first request login access from the subscriber.

Ask the subscriber to enable either Grant Account Login Access or Grant Login Access. If they don’t see your company listed, one of the following applies.

A system admin disabled the ability for non-admins to grant access.
The user doesn’t have a license for the package.
The package is licensed to the entire org. In this scenario, only an admin with the Manage Users permission can grant access.
The org setting Administrators Can Log in as Any User is enabled.

When the org setting Administrators Can Log in as Any User is disabled, login access is granted for a limited amount of time, and the subscriber can revoke access at any time.

Note

Any changes you make while logged in as a subscriber are logged in the subscriber org’s audit trail.