Social Media API Errors, Demystified
135+ real error codes across 9 platforms — what they mean, why they fire, how to fix them, and what PostPeer handles automatically so you don’t have to.
34 documented errors
Every Instagram Content Publishing API error in one place — with plain-English causes and PostPeer-specific guidance.
X (Twitter)
12 documented errors
Every common X (Twitter) API error developers hit when publishing — duplicate detection, tier caps, URL blocks, and more.
TikTok
25 documented errors
The TikTok Content Posting API's full error surface — auth, spam detection, video format, app-status, and publishing constraints.
15 documented errors
Facebook Graph API publishing errors — auth, page permissions, content policy, and rate limits.
9 documented errors
LinkedIn API errors developers hit when publishing posts to personal profiles or organization pages.
Bluesky
10 documented errors
AT Protocol errors you'll see when posting through the Bluesky PDS.
8 documented errors
Pinterest API errors for pin creation — video covers, auth, rate limits, and media format constraints.
Threads
7 documented errors
Threads API publishing errors — auth (tied to Instagram), media processing, and video format.
YouTube
15 documented errors
YouTube Data API errors for uploads, metadata, and quota — including the dreaded quotaExceeded.
Why we wrote these pages
Every platform publishes its error codes somewhere, but the docs assume you already know which layer raised the error and what the surrounding context means. After shipping PostPeer’s publish stack to all 9 platforms, we collected the errors developers actually hit and rewrote each one with the missing context.
When PostPeer can paper over an error transparently — token refresh, container retry, automatic media compression — we say so explicitly. When it can’t (a banned account, an exhausted quota), we tell you what action your user needs to take.
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