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Dropslate Docs

Facebook

Dropslate publishes to a Facebook Page through the Graph API - not to a personal profile or a group. Connecting asks for the Page permissions and lets you pick the Page; the Page token Dropslate stores is long-lived and used only by the worker that publishes.

Account requirements

Section titled “Account requirements”
  • A Facebook Page where you are an admin or editor.
  • The Page permissions granted on Meta’s screen; declining Show the list of Pages leaves nothing to connect.

Connect

Section titled “Connect”
  1. Accounts → Networks → Facebook → Connect.
  2. Sign in to Facebook, pick the Page (or Pages) on Meta’s screen, approve the permissions.
  3. Each Page appears under Your channels as its own account.

What you can publish

Section titled “What you can publish”

Pick the Content type in the Facebook tab:

  • Text - a message with an optional Link, which Facebook shows as a preview card.
  • Photo - 1 to 10 images with a message.
  • Video - one video with a message and an optional title.
  • Reel - one vertical video, 3 to 90 seconds, with a description.
  • Story - one image or video, no text.

From the API and MCP: perPlatform.facebook with contentType, link Since 1.3.0 and title; a message for Facebook alone goes in overrides.facebook.

The Facebook tab in the composer: Content type (Text, Photo, Video, Reel, Story), Message with Same as base, and a Link field for a text post.

Limits

Section titled “Limits”
Content typeMediaTextTitleTagsOtherNotes
Text
text only
63,206 characters——
link in its own field
A link goes in its own field and shows a preview.
Photo
1–10 files
image: jpg, jpeg, png, gif, bmp, tiff, up to 10 MB
63,206 characters——
links in the text
Up to 10 photos, 10 MB each.
Video
1 file
video: mp4, mov, up to 4 GB, duration 3 s–240 min
63,206 charactersno limit—
links in the text
Up to 240 minutes and 4 GB.
Reel
1 file
video: mp4, up to 4 GB, duration 3 s–1 min 30 s, aspect 9:16, width ≥ 540 px, 24–60 fps
63,206 characters——
links not clickable
9:16, at least 540 x 960, 3 to 90 seconds.
A page can publish 30 reels through the API in 24 hours.
Story
1 file
video: mp4, duration 3 s–1 min, aspect 9:16, width ≥ 540 px, 24–60 fps
image: jpg, jpeg, png, gif, bmp, tiff, up to 10 MB
no text——
no links
Stories carry no text.
Video 3 to 60 seconds.

Source: developers.facebook.com/docs/graph-api/reference/page + /docs/video-api/guides/reels-publishing + /docs/page-stories-api · checked 2026-09-15

Network-specific behaviour

Section titled “Network-specific behaviour”
  • 30 Reels a day. Facebook allows a Page 30 API-published Reels in 24 hours; the 31st fails with facebook_rate_limited and does not retry on its own.
  • A Reel is 9:16, at least 540 × 960 px; another shape is refused in the plan.
  • A link on a text post is checked on the server: https only, a public host. On any other content type the plan marks it facebook_link_text_only.
  • Stories carry no text; the base text is not sent.
  • Analytics reads likes, comments and shares per post, the post’s unique impressions, and the Page’s follower count.

Common errors

Section titled “Common errors”
Error Cause Fix
?connect=refused, or no Page listed The account manages no Page, or the Pages permission was declined. Create or get added to a Page, connect again and grant the permission.
facebook_permission_missing at send time Your role on the Page changed, or a permission was removed. Reconnect.
facebook_token_rejected The Page token no longer works (password change, security check-up). Reconnect.
facebook_rate_limited Facebook’s own daily limit of Reels published through the API on this Page - see Publishing limits. Schedule the rest for the next day.
facebook_link_text_only in the plan A link on a photo, video, Reel or Story. Move it into the message, or change the content type to Text.
aspect_unsupported on a Reel The video is not 9:16. Re-export at 1080 × 1920, or publish it as a Video.
Section titled “Related”