Messages per second (MPS) refers to limits on your account for sending messages. By default, we assign an outbound MPS limit of 5 for SMS and 0.25 for MMS at signup time. Plivo offers MMS services in the US and Canada only and the messages are dispatched as per the allocated MPS. You can find your allocated outbound MPS by visiting the SMS Overview page of the Plivo console and looking in the Account section.
For outbound messaging, MPS represents a limit on the rate at which messages are initiated for a specific account. If you exceed your allotted outbound MPS, your messages will not be dropped; instead, they will be queued and dispatched once the MPS rate falls below the limit.
You can send as many messages as required, but the rate at which messages are dispatched adheres to the allocation in your account. Here are a couple of examples.
Scenario 1: If a user has an allocated outbound limit of 5 MPS and sends 5 API messages in a second, all 5 messages will be dispatched simultaneously.
Scenario 2: If a user has an allocated outbound limit of 5 MPS and places 10 API messages in a second, the first 5 messages will be dispatched simultaneously, and the remaining 5 messages will be queued and executed during the next available MPS interval.
Can I increase my allocated MPS?
If you have a use case that requires a higher MPS limit, contact the Plivo support team. Please be advised that extra fees will be incurred for additional MPS.