Set a custom campaign video thumbnail

Use Campaign Setup → Images & Display → Custom Video Thumbnail to upload the image that should appear on your campaign video. Do not upload it as Campaign Image under Basics: that control switches the main campaign media area to an image and can hide your uploaded video.

If you already uploaded your intended thumbnail as a campaign image:

1. Go to Campaign Setup → Basics and scroll to the bottom of the page.
2. In Campaign Video / Image, find Upload Campaign Image and click Remove Image. This restores video display if your campaign video is still uploaded.
3. Go to Campaign Setup → Images & Display and upload your image in Custom Video Thumbnail.
4. Save your changes and preview the campaign page to confirm the video plays and the intended thumbnail appears.

Custom Video Thumbnail appears only when a video is uploaded and video display is enabled. If it is missing after you uploaded a campaign image, remove that campaign image first using the steps above. Confirm the video is still present under Campaign Setup → Basics.

For the thumbnail, use PNG, JPG or JPEG. The recommended dimensions are 630 × 350 pixels, or a similar ratio to reduce cropping. After saving, preview the video. An uploaded thumbnail also exposes Sync Video Thumbnail for the supported video update workflow; contact Support if the thumbnail does not update.

Custom Campaign Card is a separate image, with recommended dimensions of 600 × 400 pixels (3:2). Prelaunch and tiered pages also have separate media settings. These instructions describe the classic campaign settings.

Remove the custom thumbnail while keeping the video

In the classic Campaign Setup → Images & Display → Custom Video Thumbnail control, you can upload a replacement image and use Sync Video Thumbnail when offered. This control does not include a remove-custom-thumbnail button. If you want the custom thumbnail cleared rather than replaced, contact Support.

Do not click Remove Video to solve this request: that removes the campaign video itself. Remove Image under Basics removes a campaign image that can cover the video; it is not the same as clearing the custom video thumbnail.