--- name: customerio-common-errors-611638330011 description: | Diagnose and fix Customer.io common errors. Use when troubleshooting API errors, delivery issues, or integration problems with Customer.io. Trigger with phrases like "customer.io error", "customer.io not working", "debug customer.io", "customer.io issue". allowed-tools: Read, Grep, Bash(curl:*) version: 1.0.0 license: MIT author: Jeremy Longshore --- # Customer.io Common Errors ## Overview Diagnose and resolve common Customer.io integration errors, delivery issues, and API problems. ## Error Categories ### Authentication Errors #### Error: 401 Unauthorized ```json { "meta": { "error": "Unauthorized" } } ``` **Cause**: Invalid Site ID or API Key **Solution**: 1. Verify credentials in Customer.io Settings > API Credentials 2. Check you're using Track API key (not App API key) for identify/track 3. Ensure environment variables are loaded correctly ```bash # Verify environment variables echo "Site ID: ${CUSTOMERIO_SITE_ID:0:8}..." echo "API Key: ${CUSTOMERIO_API_KEY:0:8}..." ``` #### Error: 403 Forbidden **Cause**: API key doesn't have required permissions **Solution**: Generate new API key with correct scope (Track vs App API) ### Request Errors #### Error: 400 Bad Request - Invalid identifier ```json { "meta": { "error": "identifier is required" } } ``` **Cause**: Missing or empty user ID **Solution**: ```typescript // Wrong await client.identify('', { email: 'user@example.com' }); // Correct await client.identify('user-123', { email: 'user@example.com' }); ``` #### Error: 400 Bad Request - Invalid timestamp ```json { "meta": { "error": "timestamp must be a valid unix timestamp" } } ``` **Cause**: Using milliseconds instead of seconds **Solution**: ```typescript // Wrong { created_at: Date.now() } // 1704067200000 // Correct { created_at: Math.floor(Date.now() / 1000) } // 1704067200 ``` #### Error: 400 Bad Request - Invalid email **Cause**: Malformed email address **Solution**: ```typescript // Validate email before sending const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/; if (!emailRegex.test(email)) { throw new Error('Invalid email format'); } ``` ### Rate Limiting #### Error: 429 Too Many Requests ```json { "meta": { "error": "Rate limit exceeded" } } ``` **Cause**: Exceeded API rate limits **Solution**: ```typescript // Implement exponential backoff async function withBackoff(fn: () => Promise, maxRetries = 3) { for (let i = 0; i < maxRetries; i++) { try { return await fn(); } catch (error: any) { if (error.status === 429 && i < maxRetries - 1) { const delay = Math.pow(2, i) * 1000; await new Promise(r => setTimeout(r, delay)); continue; } throw error; } } } ``` ### Delivery Issues #### Issue: Email not delivered **Diagnostic steps**: 1. Check People > User > Activity for event receipt 2. Verify campaign is active and user matches segment 3. Check Deliverability > Suppression list 4. Review message preview for errors ```bash # Check user exists via API curl -X GET "https://track.customer.io/api/v1/customers/user-123" \ -u "$CUSTOMERIO_SITE_ID:$CUSTOMERIO_API_KEY" ``` #### Issue: Event not triggering campaign **Cause**: Event name mismatch or missing attributes **Solution**: ```typescript // Check exact event name in dashboard // Event names are case-sensitive await client.track(userId, { name: 'signed_up', // Must match exactly data: { source: 'web' } }); ``` #### Issue: User not in segment **Cause**: Missing or incorrect attributes **Solution**: 1. Check segment conditions in dashboard 2. Verify user has required attributes 3. Check attribute types match (string vs number) ### SDK-Specific Errors #### Node.js: TypeError - Cannot read property ```typescript // Wrong - SDK not initialized const client = new TrackClient(undefined, undefined); // Correct - Check env vars exist if (!process.env.CUSTOMERIO_SITE_ID) { throw new Error('CUSTOMERIO_SITE_ID not set'); } ``` #### Python: ConnectionError ```python # Handle network errors import customerio from customerio.errors import CustomerIOError try: cio.identify(id='user-123', email='user@example.com') except CustomerIOError as e: print(f"Customer.io error: {e}") except ConnectionError as e: print(f"Network error: {e}") ``` ## Diagnostic Commands ### Check API Connectivity ```bash curl -X POST "https://track.customer.io/api/v1/customers/test-user" \ -u "$CUSTOMERIO_SITE_ID:$CUSTOMERIO_API_KEY" \ -H "Content-Type: application/json" \ -d '{"email":"test@example.com"}' \ -w "\nHTTP Status: %{http_code}\n" ``` ### Verify Event Delivery ```bash curl -X POST "https://track.customer.io/api/v1/customers/test-user/events" \ -u "$CUSTOMERIO_SITE_ID:$CUSTOMERIO_API_KEY" \ -H "Content-Type: application/json" \ -d '{"name":"test_event","data":{"test":true}}' ``` ## Error Handling | Error Code | Meaning | Action | |------------|---------|--------| | 400 | Bad Request | Check request format and data | | 401 | Unauthorized | Verify API credentials | | 403 | Forbidden | Check API key permissions | | 404 | Not Found | Verify endpoint URL | | 429 | Rate Limited | Implement backoff | | 500 | Server Error | Retry with backoff | ## Resources - [API Error Reference](https://customer.io/docs/api/track/#section/Errors) - [Troubleshooting Guide](https://customer.io/docs/troubleshooting/) - [Status Page](https://status.customer.io/) ## Next Steps After resolving errors, proceed to `customerio-debug-bundle` to create comprehensive debug reports. --- Source attribution: Dicklesworthstone Original project: https://github.com/Dicklesworthstone/pi_agent_rust/blob/f28fc46ee0db8e710d95b8b55592cd38d60f2b26/tests/ext_conformance/artifacts/plugins-community/plugins/saas-packs/customerio-pack/skills/customerio-common-errors/SKILL.md License: MIT License information: https://opensource.org/license/mit Original upstream instructions; downloaded from Dave AI. ## Upstream license notice MIT License (with OpenAI/Anthropic Rider) Copyright (c) 2026 Jeffrey Emanuel Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: ADDITIONAL RIDER / RESTRICTION (OpenAI / Anthropic): This rider is part of the "conditions" of this License. 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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. # Dave AI resource metadata Creator / publisher: Dicklesworthstone Original project: https://github.com/Dicklesworthstone/pi_agent_rust/blob/f28fc46ee0db8e710d95b8b55592cd38d60f2b26/tests/ext_conformance/artifacts/plugins-community/plugins/saas-packs/customerio-pack/skills/customerio-common-errors/SKILL.md Attribution basis: Source repository record Fields of work: Marketing, Sales Roles: Customer Success Manager, Growth Marketer, Marketing Analyst Specialties: API Tools: Customer.Io Country applicability: Country not specified Classification basis: Source catalog labels Instruction SHA-256: 6bd16be6ef984a854589c224b6554b3049719d4b6001f0151c3992fe207c2bbe