# Variables

Variables can be used within the streams to dynamically replace a key with a value. Via the wildcard {helmut.variable.?} the keys set here can be replaced by the set value. ? Needs to be replaced by the key. Variables can be used for an infinite number of workflows.

#### Example:

\- **Key:** Key\
\- **Value:** Value\
\- {helmut.variable.**Key**} leads to **Value**