C107 is a task in Tasker which instructs the user to create a custom Tasker profile. This profile should be customized to adhere to the user's needs and preferences. To create a custom profile, the user must add Contexts and Tasks to the profile. Contexts are conditions that the user wants to be met before performing a task. Examples of context can include location, time, day of week, and apps running. Tasks are actions that are to be taken when the previously defined Contexts are met. The user has a wide range of tasks to choose from, such as setting a volume level, opening an app, sending a text message, or anything else that the user can think of. C107 is an important part of Tasker, as it allows the user to fully customize their experience.