Linking Campayn as a source

Alpha release

This source is currently in alpha. The interface and available tables may change.

The Campayn connector syncs your email marketing data into the PostHog Data warehouse, so you can analyze your campaigns and contacts alongside your product data.

Prerequisites

You need a Campayn account with access to your account settings, where you can find and regenerate your API key.

Adding a data source

In PostHog, go to the Sources tab of the data pipeline section.
Click + New source and click Link next to this source.
Enter your credentials (see Configuration below) and click Next.
Select the tables you want to sync, choose a sync method and frequency, then click Import.

Once the syncs are complete, you can start querying this data in PostHog.

When linking Campayn, you'll need:

Subdomain – the first part of your account host. For acme.campayn.com, enter acme.
API key – find and regenerate it in your Campayn account settings.

Sync modes

Each table can be synced in one of several modes, depending on what the source supports:

Webhook (when available) – the source pushes changes to PostHog in real time. Fastest freshness, lowest ongoing cost, and the only mode that reliably captures updates and deletes.
Incremental – only new or updated rows are synced on each run, using a cursor field (such as an updated_at timestamp). Cheaper than a full refresh, but deletes aren't captured.
Append only – new rows are appended using a cursor field; existing rows are never updated. Ideal for immutable, append-only tables like event logs.
Full refresh – the whole table is reloaded on every sync. Use it when a table has no reliable cursor or when you need deletions reflected.

See sync methods for a full explanation of how each mode works and how to choose between them.

This source is full-refresh only. Campayn's API exposes no pagination, cursors, or timestamp filters, so every table is fully re-synced on each run.

Configuration

Option	Type	Required
`Subdomain`	text	Yes
`API key`	password	Yes

Supported tables

Table	Description	Sync method	Incremental field	Primary key
`lists`	A contact list visible to the authenticated account.	Full refresh	—	—
`emails`	An email (campaign) visible to the account, with basic delivery and engagement stats.	Full refresh	—	—
`reports`	Calendar of sent and scheduled emails with their report URLs. Scheduled emails have no report URL.	Full refresh	—	—
`contacts`	A contact belonging to a list. Fetched per list, so each row carries the parent list_id; the same contact can appear under multiple lists.	Full refresh	—	—
`forms`	A signup form associated with a list (signup page, embed, WordPress, or Facebook form).	Full refresh	—	—

Troubleshooting

If you see an authentication error, your API key is invalid or has been regenerated. Create a new key in your Campayn account settings, then reconnect.
If you see a permissions error, the key is not authorized for this data. Check the key's permissions, then reconnect.

If your sync is failing or data looks wrong, see the Data warehouse troubleshooting guide. If that doesn't help, contact support – we're happy to help.