How to update every video description in minutes for a seasonal sale

Seasonal offers work best when viewers see them across your catalog, not just on the latest upload. This guide shows how to plan the copy, measure results, then roll the update to every video description in minutes.

Decide the offer and copy

Your sale block should be short, clear, and above the fold.

• Offer: what viewers get and for how long
• Proof: a line that reduces risk like refund window or social proof
• Call to action: one specific action with a verb

Example block:

Save 20% on the course until August 31. 7 day refund. Get the full roadmap here → https://example.com/course

Place this block within the first 2 to 4 lines to be visible without expanding the description.

Decide scope and timing

• Scope: all public videos or specific playlists
• Timing: start today or at a set date and time
• End condition: at the sale end, replace the sale message with your default message or the next campaign message across the catalog

How to roll it out with Sendari

1. Create a new message
   • Paste your 2 to 4 line sale block with the final URL
   • Keep it concise to avoid pushing other key info down
   • Toggle Track urls to automatically capture clicks
2. Choose targeting
   • Select specific video playlists that match the offer
3. Schedule
   • Set a start date and time if you want the block to appear later
4. Apply at scale
   • Use the bulk update to publish the message to existing videos in scope
   • Enable the option to auto attach this message to all new uploads during the campaign (in the campaign settings)
5. Track performance
   • Open Analytics → Performance per Video to see which videos drive clicks
   • Check Performance per Link to confirm the URL and copy are working

Optimize during the sale

• Watch click through rates for the first 24 to 48 hours
• If CTR is low, test a stronger verb in the CTA or move the block higher
• Remove secondary links during the sale window to reduce distraction

Cleanly end the promotion

At the end date, publish a replacement message across all videos. Use your default description message to restore the baseline, or publish the next campaign message.

Checklist

• Offer and deadline are clear
• CTA is in the first 2 to 4 lines
• Links are tracked in Sendari or have UTM tags
• Scope and schedule set
• Bulk update published
• Analytics checked after 24 hours

Track results

UTM tracking adds short tags to your URL so analytics tools can attribute visits to a source, medium, campaign and content. They appear as query parameters, for example ?utm_source=youtube&utm_medium=description.

• utm_source: youtube
• utm_medium: description
• utm_campaign: seasonal_sale_aug
• utm_content: video_slug or video_id

Sendari can also track clicks for you without UTM parameters.

• Add the final URL (no UTM required)
• Click Track urls when you publish the message
• We attribute every click by video, message, link and campaign
• See results in Analytics by video, link and campaign

You can choose how to track:

• Use UTM without Sendari tracking
• Use Sendari tracking without UTM
• Or use both: enable Track urls and include UTM parameters. We will keep your UTM parameters, record the click in Sendari and redirect to the UTM URL

Run this play for Black Friday, product launches or seasonal bundles. The key is consistent placement, one focused CTA and a clean rollback when the campaign ends.