Klaviyo Rate Limits Overview Handle Klaviyo's per-account fixed-window rate limits with proper header handling, exponential backoff, and request queuing. Prerequisites - SDK installed - Understanding of Klaviyo's dual-window rate limiting Klaviyo Rate Limit Architecture Klaviyo uses per-account fixed-window rate limiting with two distinct windows: | Window | Duration | Limit | Description | |--------|----------|-------|-------------| | Burst | 1 second | 75 requests | Short spike protection | | Steady | 1 minute | 700 requests | Sustained throughput cap | Both windows apply simultaneously. Ex…