Before publishing content directly to Instagram via ContentStudio, ensure your media and account meet the following Instagram API requirements.

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1. Account Requirements

Requirement	Description
Account Type	Only Instagram Business accounts linked to a Facebook Page are supported.
Post Limit	Up to 25 API-published posts per account in a 24-hour period. (This does not affect mobile notification publishing.)

2. Supported and Unsupported Content

Supported	Not Supported
Multiple-image (carousel) posts	IGTV
Single-video posts	Stories
User tags	Shopping tags
Location tags	Branded content tags
—	Filters

3. Hashtags and Mentions

Type	Limit
Hashtags	Up to 30 per post
@Mentions	Up to 20 per post

4. Image Requirements

Images must be uploaded in JPEG format and meet the following technical standards:

Specification	Details
Maximum File Size	8 MB
Aspect Ratio	Between 4:5 and 1.91:1
Minimum Width	320 px (will scale up if smaller)
Maximum Width	1440 px (will scale down if larger)
Height	Varies depending on width and aspect ratio

5. Video Requirements (Feed Videos)

Specification	Details
Container	MOV or MP4 (MPEG-4 Part 14) — MOOV atom at the front
Audio Codec	AAC, 48 kHz max, mono or stereo
Video Codec	HEVC or H.264, progressive scan, closed GOP, 4:2:0 chroma subsampling
Frame Rate	23–60 FPS

6. Reels Requirements

Specification	Details
Container	MOV or MP4 (MPEG-4 Part 14) — MOOV atom at the front
Audio Codec	AAC, 48 kHz max, mono or stereo
Video Codec	HEVC or H.264, progressive scan, closed GOP, 4:2:0 chroma subsampling
Frame Rate	23–60 FPS
Maximum Resolution	1920 px width
Aspect Ratio	0.01:1 – 10:1 (Recommended: 9:16)
Video Bitrate	Up to 5 Mbps
Audio Bitrate	128 kbps
Duration	3 seconds (min) – 15 minutes (max)
File Size	Up to 100 MB

Quick Summary

• Only Instagram Business accounts (linked to Facebook) can publish directly.
• 25 posts per day API publishing limit.
• JPEG for images; MP4/MOV for videos.
• Reels: up to 15 minutes and 100 MB.
• 30 hashtags and 20 mentions allowed per post.