Capacity rate limiting is imposed on each available API endpoint and will return the appropriate HTTPS error codes (e.g.,
503, etc.) depending on the state of the system.
Two forms of capacity rate limiting are currently supported:
v2.25.3, the request rate limit for the
messagesendpoint is 50 requests per second with bursts allowed up to 150 requests per second.
v2.25.3and all other endpoints, the request rate limit is 20 requests per second with bursts allowed up to 60 requests per second.
When you hit either of these capacity rate limiting scenarios, you should halt any further requests and slow the pace of your API requests. If you start seeing many capacity rate limit errors, it would be advisable to build a queue on your end to throttle the requests.
If your expected average send-rates are significantly higher and queuing is not an effective strategy, please look into our High Availability and Scaling options.
The phone number status, quality rating, and messaging limits for your WhatsApp business account are listed in the Phone Numbers tab in WhatsApp Manager.
See About WhatsApp Business Account Message Quality Rating for information.
Messaging limits determine how many unique users your business can send messages to on a daily basis. This includes new conversations as well as existing conversations with users. The messaging limit does NOT limit the number of messages your business can send, just the number of users you are trying to message. It also does NOT apply to messages sent in response to a user-initiated message within a 24-hour period.
Note: A business starts in Tier 1 when it registers its phone number.
A business’s phone number will be upgraded to the next tier if:
Once the business reaches this threshold, it will be moved to the next tier. The minimum amount of time that this upgrade can occur is after 48 hours, when the business is sending messages up to their current limit every day.
See the charts below for examples of how a business might move to the next tier:
Example 1: A business is upgraded from Tier 1 to Tier 2 when it messages a total of 2,000 users within a 7-day period.
Example 2: The chart explains the concept of messaging limit in a rolling 24-hour window.
To maintain high quality:
No. Currently, messaging limits only apply to business-initiated messages (notifications).
Your quality rating is found in the Phone Numbers tab of your WhatsApp business account.