Overwrite Previous Package

The Overwrite Previous Package option gives Publishers the choice to Merge or Overwrite packages. The Merge/Overwrite choice is applied when a Subscriber installs a package.

The Overwrite Previous Package option is enabled by your Service Provider. The default single sign-on setting on on-premises installation is Off. The default single sign-on setting on the cloud is Off. (Contact Support to make changes.)

When the Overwrite Previous Package option is enabled, these options become available as part of package configuration:

Merge

Items in the previous package that were deleted by the packager remain on the subscriber's system.

Overwrite

Items in the previous package that were deleted by the packager are removed from the subscriber's system, with the exception of these items, which remain on the subscriber's system unless and until they are manually deleted:

• Applications (if previously added as a result of a Package Dependency
• Classes
• Global Picklists
• Global Template Variables
• Object Email Templates
• Object Processes
• Object Web Forms
• Roles
• Teams
• Web Services

Learn more: Package Items#How Package Items are Applied