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

# Spam waves

> Decide once on content that arrives two hundred times

## The problem

A campaign hits: the same crypto giveaway posted from fifty accounts, sometimes
reworded just enough to look different. Reviewed one row at a time, it's two hundred
identical decisions, the queue looks catastrophic, and everything else in it is buried.

## The view

* Filter **Label → Spam**.
* In **Settings**, set **Deduplication → Similar content**.

Near-identical items collapse into a single row with a count. You decide once, and the
whole group goes with it.

## Choosing a deduplication mode

| Mode                 | Groups                         | Use when                                 |
| -------------------- | ------------------------------ | ---------------------------------------- |
| **Similar content**  | Near-identical wording         | Reworded spam, template messages         |
| **Exact duplicates** | Byte-identical content         | Copy-paste floods                        |
| **By content ID**    | Resubmissions of the same item | The default, for edited content          |
| **Off**              | Nothing                        | You need every submission on its own row |

<Tip>
  If the same wave keeps arriving, the durable fix is upstream — a
  [wordlist](/policies/wordlists) or a [rule](/content-moderation/rules) that rejects it
  before it reaches review. This view is for handling the wave you're already in.
</Tip>