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Dropslate Docs

Threads

Threads is a separate Meta product with its own API and its own sign-in - connecting Instagram does not connect Threads, and the reverse. Publishing follows the same container flow as Instagram: Dropslate creates a container, waits until Threads reports it ready, then publishes.

Account requirements

Section titled “Account requirements”
  • A Threads profile. Sign in with the Instagram account behind it when Threads asks.
  • Analytics needs the insights permission granted at connect time.

Connect

Section titled “Connect”
  1. Accounts → Networks → Threads → Connect.
  2. Sign in and approve Basic profile, Publish content and Read insights.
  3. The profile appears under Your channels.

What you can publish

Section titled “What you can publish”
  • Text - up to 500 characters, with an optional Topic and, when there is no file, a Link attachment that Threads shows as a card.
  • Photo - one JPEG or PNG with text and alt text.
  • Video - one video with text.
  • Carousel - 2 to 20 photos or videos with text.

From the API and MCP: perPlatform.threads with topicTag, linkAttachment, altText Since 1.3.0; text for Threads alone goes in overrides.threads.

The Threads tab in the composer: Text with a byte-aware counter, Topic, Link attachment and Alt text.

Limits

Section titled “Limits”
Content typeMediaTextTitleTagsOtherNotes
Text
text only
500 characters——
link in its own field
topic tag 50 characters; refused: "." "&"
500 characters; an emoji counts as its bytes.
One topic tag, in its own field.
A link attachment is for text posts only.
Photo
1 file
image: jpg, jpeg, png, up to 8 MB, aspect 0.10–10.00, width 320 px–1440 px
500 characters——
links in the text
alt text 1,000 characters
topic tag 50 characters; refused: "." "&"
JPEG or PNG up to 8 MB.
Video
1 file
video: mp4, mov, up to 1 GB, duration up to 5 min, aspect 9:16, width up to 1920 px, 23–60 fps
500 characters——
links in the text
topic tag 50 characters; refused: "." "&"
Up to 5 minutes and 1 GB.
Carousel
2–20 files
video: mp4, mov, up to 1 GB, duration up to 5 min, aspect 9:16, width up to 1920 px, 23–60 fps
image: jpg, jpeg, png, up to 8 MB, aspect 0.10–10.00, width 320 px–1440 px
500 characters——
links in the text
topic tag 50 characters; refused: "." "&"
2 to 20 photos or videos.

Source: developers.facebook.com/docs/threads/posts · checked 2026-09-15

Network-specific behaviour

Section titled “Network-specific behaviour”
  • Emoji count as bytes. 500 is measured so that a plain letter costs 1 and an emoji costs its UTF-8 bytes; the counter in the tab does the same.
  • One topic, in its own field. Base Tags are not written into a thread; Threads takes a single topicTag (1–50 characters, no . or &).
  • A link attachment is for text posts only; with a file the plan marks it threads_link_with_media.
  • Reply controls are not offered: they need a permission (threads_manage_replies) Dropslate does not request.
  • Analytics reads views, likes, replies, reposts, quotes and shares per thread and the profile’s follower count.

Common errors

Section titled “Common errors”
Error Cause Fix
?connect=refused Consent declined, or the account has no Threads profile. Create the profile in the Threads app, connect again.
threads_empty in the plan Neither text nor a file. Add one or the other.
threads_carousel_count Fewer than 2 or more than 20 items. Adjust the selection.
threads_link_with_media A link attachment together with a file. Remove the attachment or the file.
threads_token_rejected Threads no longer accepts the token. Reconnect.
threads_rate_limited Threads’ own daily publishing limit for the profile. The post retries later on its own; otherwise Retry the next day.
failed while still processing Threads did not finish the container in time. Retry.
Section titled “Related”