WhatsApp Business API Messaging Limit

Messaging limits determine how many 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 send messages to. It also does NOT apply to messages sent in response to a user-initiated message within a 24-hour period.

Messaging limits are divided into several tiers:

Tier 1: Allows your business to send messages to 1K unique customers in a rolling 24-hour period.
Tier 2: Allows your business to send messages to 10K unique customers in a rolling 24-hour period.
Tier 3: Allows your business to send messages to 100K unique customers in a rolling 24-hour period.
Tier 4: Allows your phone number to have unlimited business-initiated conversations in a rolling 24-hour period.

Note: A business starts in Tier 1 when it registers its phone number with WhatsApp.

A business phone number will be upgraded to the next tier if:

Its quality rating is not low, and
The cumulative number of users it sends notifications to adds up to twice its current messaging limit within a 7-day period. 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.

The charts below show 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.