# Conditions-Custom

The Custom condition category contains the following conditions:

<table><thead><tr><th width="128.33333333333331">Category</th><th width="192">Type</th><th>Description</th></tr></thead><tbody><tr><td>Custom</td><td>Composite</td><td>Definition of conditions to be executed in sequence</td></tr><tr><td></td><td>Expression</td><td>The Expression action executes a simple expression (javascript). The expression must return a boolean</td></tr><tr><td></td><td>Function</td><td>Executes a .Net custom function and returns a boolean result</td></tr><tr><td></td><td>Script</td><td>The Script field action executes a script (javascript). The script must return a boolean.</td></tr><tr><td></td><td></td><td></td></tr></tbody></table>