Holiday clip for a marketplace video slot: what to check before upload

Amazon, Shopify, Etsy and TikTok Shop each set their own video rules. Sume gives you ratio, length and size controls; read each platform's current page.

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Amazon, Shopify, Etsy and TikTok Shop each publish their own video rules and change them. This post does not quote those numbers. It lists what Sume lets you control, so you can match the current rule from each platform's own page.

What you control

The Sume side of the checklist.

Controls on the Sume side (read 2026-10-04)
PropertyHow to set it
LengthPick duration on POST /v1/videos, or trim for $0.02
RatioTimeline fit: cover, contain, stretch or blur
Resolution480p, 720p or 1080p on Seedance 2.5
Check a fileVideo inspect probe is free

Before upload

Run the probe on the finished file and compare duration, size and ratio with the platform's page for that day.

Content rules

Marketplaces have separate rules on claims, price text and AI disclosure. Read those too.

  • Do not show a price that will change
  • Do not show an unavailable feature
  • Disclose generated people where required

Not verified here

The marketplace limits themselves were not checked for this post.

Sources

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