# Clickup Common Errors

> Diagnose and fix ClickUp API v2 errors by HTTP status and error code. Use when encountering ClickUp API errors, debugging failed requests, or troubleshooting OAUTH_* error codes, 401s, 429s, and 500s. Trigger: "clickup error", "fix clickup", "clickup not working", "clickup 401", "clickup 429", "OAUTH error", "debug clickup API".

- Skill: `gabrielmoreira/clickup-common-errors` (Agent Skill)
- Install (CLI): `npx skillmds@latest add gabrielmoreira/clickup-common-errors`
- Raw SKILL.md: https://api.skillmd.com/api/skills/gabrielmoreira/clickup-common-errors/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Integrations & APIs
- License: MIT
- Author: gabrielmoreira (https://skillmd.com/u/gabrielmoreira)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/gabrielmoreira/clickup-common-errors

---

# ClickUp Common Errors

## Overview

Reference for ClickUp API v2 errors. All errors return JSON with `err` (message) and optionally `ECODE` (error code).

## Error Response Format

```json
{
  "err": "Space not found",
  "ECODE": "ITEM_015"
}
```

## HTTP Status Errors

### 400 Bad Request

| Situation | Response | Fix |
|-----------|----------|-----|
| Missing required field | `{"err": "Task name required"}` | Include `name` in request body |
| Invalid field value | `{"err": "Invalid priority"}` | Priority must be 1-4 or null |
| Malformed JSON | `{"err": "Unexpected token"}` | Validate JSON before sending |
| Invalid custom field value | `{"err": "Invalid value for field"}` | Match value to field type |

### 401 Unauthorized — OAuth Errors

| ECODE | Cause | Solution |
|-------|-------|----------|
| OAUTH_017 | Token malformed or missing | Include `Authorization: <token>` header |
| OAUTH_023 | Workspace not authorized for token | User must re-authorize workspace in OAuth flow |
| OAUTH_026 | Token revoked by user | Generate new personal token or re-authenticate |
| OAUTH_027 | Workspace not authorized | Re-authorize via OAuth, ensuring workspace scope |
| OAUTH_029-045 | Various workspace auth failures | Re-run OAuth flow for the specific workspace |

```bash
# Diagnose: verify your token works
curl -s -w "\nHTTP %{http_code}\n" \
  https://api.clickup.com/api/v2/user \
  -H "Authorization: $CLICKUP_API_TOKEN"
```

### 403 Forbidden

| Situation | Fix |
|-----------|-----|
| No access to space/folder/list | Verify user has access to that part of the hierarchy |
| Insufficient role permissions | Need admin role for destructive operations |
| Guest access limitation | Guests have restricted API access |

### 404 Not Found

```bash
# Common causes: wrong ID, deleted resource, wrong hierarchy level
# Verify the resource exists:
curl -s https://api.clickup.com/api/v2/task/TASK_ID \
  -H "Authorization: $CLICKUP_API_TOKEN" | jq '.id, .name'
```

### 429 Rate Limited

Rate limits vary by plan (per token, per minute):

- **Free/Unlimited/Business**: 100 req/min
- **Business Plus**: 1,000 req/min
- **Enterprise**: 10,000 req/min

```bash
# Check rate limit headers on any response
curl -s -D - https://api.clickup.com/api/v2/user \
  -H "Authorization: $CLICKUP_API_TOKEN" 2>&1 | grep -i ratelimit

# Headers returned:
# X-RateLimit-Limit: 100
# X-RateLimit-Remaining: 95
# X-RateLimit-Reset: 1695000060  (Unix timestamp)
```

### 500/503 Server Errors

Check [ClickUp Status Page](https://status.clickup.com) first.

```bash
# Quick status check
curl -s https://status.clickup.com/api/v2/summary.json | \
  jq '.status.description'
```

## Diagnostic Script

```bash
#!/bin/bash
echo "=== ClickUp API Diagnostics ==="

# 1. Auth check
echo -n "Auth: "
HTTP_CODE=$(curl -s -o /dev/null -w "%{http_code}" \
  https://api.clickup.com/api/v2/user \
  -H "Authorization: $CLICKUP_API_TOKEN")
[ "$HTTP_CODE" = "200" ] && echo "OK" || echo "FAILED ($HTTP_CODE)"

# 2. Rate limit check
echo -n "Rate limit remaining: "
curl -s -D - https://api.clickup.com/api/v2/user \
  -H "Authorization: $CLICKUP_API_TOKEN" 2>&1 | \
  grep "X-RateLimit-Remaining" | awk '{print $2}'

# 3. Workspace access
echo "Workspaces:"
curl -s https://api.clickup.com/api/v2/team \
  -H "Authorization: $CLICKUP_API_TOKEN" | jq -r '.teams[] | "  \(.id): \(.name)"'
```

## Error Handler Pattern

```typescript
async function handleClickUpError(response: Response): Promise<never> {
  const body = await response.json().catch(() => ({ err: 'Unknown' }));

  switch (response.status) {
    case 401:
      throw new Error(`Auth failed (${body.ECODE}): Re-check token or re-authorize`);
    case 429: {
      const resetAt = response.headers.get('X-RateLimit-Reset');
      const waitMs = resetAt ? (parseInt(resetAt) * 1000 - Date.now()) : 60000;
      throw new Error(`Rate limited. Retry after ${Math.ceil(waitMs / 1000)}s`);
    }
    case 404:
      throw new Error(`Resource not found: ${body.err}`);
    default:
      throw new Error(`ClickUp API ${response.status}: ${body.err}`);
  }
}
```

## Prerequisites

- Authorized access to the affected environment and a scoped diagnostic identity
- Redacted request/correlation metadata and last certified integration state
- A known owner for workspace, token, task data, and production change approval
- Access to rate-limit and platform-status information

## Instructions

Identify the target workspace/list and error class, collect only the minimum
redacted response metadata, then apply the matching recovery path. Change one
variable at a time and preserve the prior certified state; do not retry 401,
403, 429, or data-integrity errors with broader credentials or unbounded loops.

## Error Handling

| Failure class | Safe response |
|---|---|
| Authentication or authorization | Stop requests and route token/scope repair to its owner. |
| Rate limit or provider outage | Preserve retry timing, defer through the scheduler, and protect queued work. |
| Resource or mapping mismatch | Do not mutate; re-resolve IDs/schema and reconcile state first. |
| Possible data exposure | Restrict access and follow the incident process with redacted evidence. |

## Output

Produce a diagnostic record with environment, affected resource ID, symptom,
safe correlation data, containment action, retry/rollback decision, and
escalation owner. Never include tokens, full task content, attachments, or
unapproved member data in general logs or tickets.

## Examples

On a 429, capture the reset header and defer the same idempotent job; do not
submit a duplicate task. On a 401, halt the worker and verify the secret
reference with its owner. If a mapping is wrong, compare the certified target
state before retrying rather than overwriting tasks.

## Resources

- [ClickUp Common Errors](https://developer.clickup.com/docs/common_errors)
- [ClickUp API Error Handling](https://clickup.com/api/developer-portal/general-errorhandling/)
- [ClickUp Status Page](https://status.clickup.com)

## Next Steps

For comprehensive debugging, see `clickup-debug-bundle`.