| name | klaviyo-common-errors |
| description | Diagnose and fix common Klaviyo API errors and exceptions.
Use when encountering Klaviyo 4xx/5xx errors, debugging failed requests,
or troubleshooting SDK integration issues.
Trigger with phrases like "klaviyo error", "fix klaviyo",
"klaviyo not working", "debug klaviyo", "klaviyo 400", "klaviyo 429".
|
| allowed-tools | Read, Grep, Bash(curl:*), Bash(npm:*) |
| version | 1.7.0 |
| license | MIT |
| author | Jeremy Longshore <jeremy@intentsolutions.io> |
| tags | ["saas","klaviyo","email-marketing","cdp"] |
| compatibility | Designed for Claude Code |
Klaviyo Common Errors
Overview
Quick reference for the most common Klaviyo API errors with real error payloads,
root causes, and solutions. Because Klaviyo returns JSON:API errors (a status
code plus a structured errors[] array), this skill walks you from a raw
exception to a targeted fix: extract the status code, match it against the
catalog, apply the documented remedy.
The full per-status-code catalog and the SDK-level failure table live in
references/ to keep this workflow scannable — drill in once you know which
status code you are chasing.
Prerequisites
klaviyo-api SDK installed (npm install klaviyo-api — note: not @klaviyo/sdk)- A private API key (
pk_*) exported as KLAVIYO_PRIVATE_KEY
- Access to the application logs where the failed request was recorded, so you
can
Read the stack trace and Grep for the status code and error code
Instructions
Step 1: Identify the Error
Extract the status code and error detail from the caught exception. Read the
log line or wrap the call so the structured payload is visible:
try {
await profilesApi.createProfile(payload);
} catch (error: any) {
console.error('Status:', error.status);
console.error('Errors:', JSON.stringify(error.body?.errors, null, 2));
}
If you only have raw logs, Grep for the status code (grep -E "40[0-9]|429|50[0-9]")
and the code field to isolate the failing request.
