| Name | Type | Description | Notes |
|---|---|---|---|
| slots | int | Ad slots in the newsletter, each its own image + link (clamped). | [optional] [default to 1] |
| merge_tag | string | Your email tool's per-recipient merge tag, written into the code as rid. Use a recipient id, not the address. No spaces, quotes, < > or &; anything else falls back to the default. | [optional] [default to '{{email_id}}'] |
| label | string | Disclosure above each slot and the image alt text; plain text (empty = the default). | [optional] [default to 'Advertisement'] |
| ttl_days | int | Days the ad picked for a recipient's open is kept (clamped). | [optional] [default to 7] |
| fallback_link | string | http(s) URL a click goes to when no ad can be picked; anything else is stored empty. | [optional] [default to ''] |