> ## Documentation Index
> Fetch the complete documentation index at: https://docs.feedopt.se/llms.txt
> Use this file to discover all available pages before exploring further.

# Rule Actions

> Explore all the available actions you can use in your rules.

## Actions

Actions are performed when the conditions of your rule are met. They allow you to modify your data.

### Text

<CardGroup>
  <Card title="Set value to">
    Sets the value of the field to a new specified value. You can use placeholders for other fields.

    **Operator:** `set_value_to`
  </Card>

  <Card title="Append value">
    Appends a specified value to the existing field value.

    **Operator:** `append_value`
  </Card>

  <Card title="Copy value">
    Copies the value from another field.

    **Operator:** `copy_value`
  </Card>

  <Card title="Combine value">
    Combines multiple field values and/or static text using a template.

    **Operator:** `combine_value`
  </Card>

  <Card title="Search for value">
    Searches for a value in another field and sets the current field's value from a list of corresponding replacement values.

    **Operator:** `search_for_value`
  </Card>

  <Card title="Replace text">
    Finds and replaces text. Can be case-sensitive or use regular expressions.

    **Operator:** `replace_text`
  </Card>

  <Card title="Lookup and replace">
    Looks for an exact match in a list of values and replaces it with a corresponding value from another list.

    **Operator:** `lookup_and_replace`
  </Card>

  <Card title="Search and replace">
    Searches for text and replaces it. Can handle multiple search/replace pairs.

    **Operator:** `search_and_replace`
  </Card>

  <Card title="Split text">
    Splits text by a delimiter and keeps a specified part (e.g., first, last, or nth part).

    **Operator:** `split_text`
  </Card>

  <Card title="Maximum length">
    Truncates the text to a maximum length, either directly or at a word boundary.

    **Operator:** `maximum_length`
  </Card>

  <Card title="Modify text">
    Performs various text modifications like changing case, removing characters, or stripping HTML.

    **Operator:** `modify_text`
  </Card>
</CardGroup>

### Tracking and categories

<CardGroup>
  <Card title="Add UTM tracking">
    Adds UTM tracking parameters to a URL.

    **Operator:** `add_utm_tracking`
  </Card>
</CardGroup>

### Math

<CardGroup>
  <Card title="Round number">
    Rounds a number up, down, or to the closest value, based on a specified increment.

    **Operator:** `round_number`
  </Card>

  <Card title="Reformat number">
    Changes the decimal and thousands separators of a number.

    **Operator:** `reformat_number`
  </Card>

  <Card title="Calculate">
    Performs basic arithmetic operations (multiply, divide, add, subtract) with a value or another field.

    **Operator:** `calculate`
  </Card>

  <Card title="Calculate date interval">
    Calculates the time interval between two dates.

    **Operator:** `calculate_date_interval`
  </Card>

  <Card title="Calculate date">
    Adds or subtracts a time duration from a date.

    **Operator:** `calculate_date`
  </Card>

  <Card title="Calculate sum">
    Calculates the sum of numbers in a field (can be a list).

    **Operator:** `calculate_sum`
  </Card>

  <Card title="Calculate length">
    Calculates the character length of a field.

    **Operator:** `calculate_length`
  </Card>

  <Card title="Calculate list length">
    Calculates the number of items in a list.

    **Operator:** `calculate_list_length`
  </Card>
</CardGroup>

### Item

<CardGroup>
  <Card title="Exclude item">
    Excludes the item from being processed further or included in feeds.

    **Operator:** `exclude_item`
  </Card>
</CardGroup>

### List

<CardGroup>
  <Card title="Sort list">
    Sorts a list in ascending or descending order.

    **Operator:** `sort_list`
  </Card>

  <Card title="Slice list">
    Extracts a portion of a list based on start and end positions.

    **Operator:** `slice_list`
  </Card>

  <Card title="Split text to list">
    Converts a text string into a list by splitting it with a delimiter.

    **Operator:** `split_text_to_list`
  </Card>

  <Card title="Join list to text">
    Joins the items of a list into a single text string with a specified separator.

    **Operator:** `join_list_to_text`
  </Card>

  <Card title="Remove duplicates from list">
    Removes any duplicate items from a list.

    **Operator:** `remove_duplicates_from_list`
  </Card>
</CardGroup>