Service-Now provides functionalities or features in the form of system modules. Usually, modules are activated by default, but if you want to add additional functionality, then you can consider system plugins. Plugins are like small software components that provide features and functionality as an option. Let's better understand this with an example: Data Archive is a plugin that is not activated by default. The size of the data increases in Service-Now according to the time that has passed; for example, an incident more than a year old is less significant as compared to a current incident, and old data may affect the performance of queries and reports.
To step through this recipe, you should have an active Service-Now instance, valid credentials, and an admin role.