For those who are new to Sealed and Unsealed management packs, the following is the difference explained in a paragraph taken from
In Service Manager, most of the customization activities are performed using management packs (MP). Customization activities can be performed for multiple objects, such as notification templates, groups, list items, workflows, and so on. MPs are of two types: Sealed and Unsealed.
A Sealed management pack cannot be modified, but only used as and when required. It has a .mp extension. Unsealed management packs are just XML files with the .xml extension and can be modified using the SCSM console, or any other method to edit the XML file. A Sealed MP and an Unsealed MP both work best together to achieve most of the scenarios. A Sealed MP has basic functionality added to it, while an Unsealed MP takes care of the customization activities on top of that.
This example will demonstrate how to list and export all the available management packs...
