> For the complete documentation index, see [llms.txt](https://docs.midpointapi.com/midpoint-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.midpointapi.com/midpoint-documentation/core-concepts/midpoints/source-and-task-definitions/variables.md).

# Variables

Variables are values that have been returned by a source or a previous task. Each source and task assigns a name and a value determined at runtime to each variable.

Variables are added to a task definition by entering a value surrounded by double curly braces in an input field `{{like_this}}`. Any occurrence of this token in a task definition will be replaced by the value of the variable itself at runtime.