> ## Documentation Index
> Fetch the complete documentation index at: https://docs.conversion.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# Campaign Members
> Add contacts to a campaign and track their progression through member statuses.
Members are the contacts enrolled in a campaign. Each member carries a **status** that represents where they are in the campaign's progression. For example, *Invited*, *Registered*, or *Attended*.
## Adding members
To add contacts to a campaign, click **Add members** inside the campaign.
By default, new members are assigned the **first status** defined in the campaign's [type](/product-docs/campaigns/settings/types). This default can be overridden in two ways:
* **Manually** — choose a different status when adding members.
* **Salesforce sync** — if the campaign is synced to a Salesforce campaign, the member's status in Salesforce takes precedence. See [Salesforce Sync](/product-docs/campaigns/salesforce-sync) for details.
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## Member statuses
Member statuses are defined at the [campaign type](/product-docs/campaigns/settings/types) level. Every campaign of that type shares the same set of available statuses.
Statuses are ordered, and **members follow a strictly forward progression** in automated contexts such as workflows. However, an individual member can be manually changed to a prior status if needed.
### Success statuses
One or more statuses in a campaign type must be marked as a **success status**. A success status indicates that the member has meaningfully responded to or engaged with the campaign. For example, *Attended* or *Converted*.
Every campaign type requires at least one success status. This is also a Salesforce requirement used for campaign ROI and response rate metrics.