[Bug]: LINKEDIN_CREATE_LINKED_IN_POST fails with 426 NONEXISTENT_VERSION — SDK returns only 4 legacy actions despite 22 actions available in dashboard

[samuelmemmi]

SDK Language

TypeScript / Node.js SDK (@composio/core)

SDK Version

composio-core@0.5.39

Runtime Environment

Node.js v20.19.5 on macOS

Environment

Production Deployment

Describe the Bug

LINKEDIN_CREATE_LINKED_IN_POST returns a 426 error because Composio calls LinkedIn's API with LinkedIn-Version: 20241101 which LinkedIn has marked as inactive.

Additionally, there is a critical inconsistency between the dashboard and the SDK: the dashboard shows LinkedIn at version 20260316_00 with 22 available actions, but the SDK only returns 4 legacy actions — the new actions are completely inaccessible via the SDK.

Expected: post should be created successfully, and all 22 actions visible in the dashboard should be accessible via actions.list().

Steps to Reproduce

Connect a LinkedIn account via Composio OAuth
Execute LINKEDIN_CREATE_LINKED_IN_POST with a valid payload
Observe 426 error — Requested version 20241101 is not active
Run client.actions.list({ apps: 'linkedin' }) — observe only 4 actions returned despite 22 shown in dashboard

Minimal Reproducible Example

import { Composio } from 'composio-core';

const client = new Composio({ apiKey: process.env.COMPOSIO_API_KEY });

// Returns only 4 actions — dashboard shows 22
const actions = await client.actions.list({ apps: 'linkedin', limit: 100 });
console.log(actions.length); // → 4

// Fails with 426 NONEXISTENT_VERSION
const entity = await client.getEntity('my_entity_id');
const result = await entity.execute({
  actionName: 'LINKEDIN_CREATE_LINKED_IN_POST',
  params: {
    author: 'urn:li:person:XXXXX',
    commentary: 'Test post',
    visibility: 'PUBLIC',
    lifecycleState: 'PUBLISHED',
  },
});

Error Output / Stack Trace

{
  "data": {
    "message": "{\"status\":426,\"code\":\"NONEXISTENT_VERSION\",\"message\":\"Requested version 20241101 is not active\"}",
    "http_error": "426 Client Error: Upgrade Required for url: https://api.linkedin.com/rest/posts",
    "status_code": 426
  },
  "error": "{\"status\":426,\"code\":\"NONEXISTENT_VERSION\",\"message\":\"Requested version 20241101 is not active\"}",
  "successful": false
}

Reproducibility

• Always reproducible
• Intermittent / Sometimes
• Happened once, can’t reproduce

Additional Context or Screenshots

No response

[Uday-sidagana]

Hey @samuelmemmi, the 426 error might be due to older version of toolkit used while making the tool call. Could you try the latest version(20260316_00) and lmk if it works for you? Docs: https://docs.composio.dev/docs/tools-direct/toolkit-versioning.

Also, you can checkout our AiAgent in the docs, it should be super helpful.

[samuelmemmi]

Thanks for the quick reply @Uday-sidagana . I've checked the dashboard and LinkedIn is already showing as latest (20260316_00). However, the SDK (composio-core@0.5.39) still returns only 4 actions regardless of any version parameter I pass:
// All of these still return 4 actions
client.actions.list({ apps: 'linkedin', version: '20260316_00' })
client.actions.list({ apps: 'linkedin', toolkitVersion: '20260316_00' })
// REST API v2 same result

Could you provide a concrete code example (TypeScript) showing how to:
List actions from the 20260316_00 version via SDK
Execute LINKEDIN_CREATE_LINKED_IN_POST using that version
The v2 API endpoint /api/v2/actions?apps=linkedin also returns the same 4 legacy actions regardless of version params.

[samuelmemmi]

Can you help ? @Uday-sidagana