HTTP 429 Too Many Requests response.
Most limits below are the defaults. Several limits can be raised for your workspace based on genuine need — contact your MoEngage Customer Success Manager (CSM) or the Support team to discuss an increase.
Rate limits and payload caps are two separate controls. A request can be within the rate limit but still be rejected for exceeding the payload size, or vice versa. Each endpoint’s own reference page carries its authoritative limit; the tables below summarize them.
Rate limits by endpoint
Endpoints are grouped by product area to match the API reference navigation. When several endpoints share a single pool, the limit is applied across all of them.Data
File imports
Business Events
Templates and content
Recommendations
Coupons
Catalog
Flows
Offerings
Campaigns (V5)
Campaigns (Legacy)
Campaign report and stats
Segments
A workspace can have up to 1,000 active segments at a time (file, filter, and custom combined).
Subscriptions
Push
Cards
Inform
Live Activities
Personalize
Message Archival
Payload size limits
Payload caps are enforced independently of rate limits. A request larger than the cap is rejected — typically withHTTP 413 (payload too large) or HTTP 400, depending on the endpoint.