# What is TPS (Transactions Per Second)?

> TPS (transactions per second) — also called MPS or send rate — is the throughput ceiling of a messaging bind or account: how many SMS submit_sm PDUs the SMSC accepts per second before it returns throttling errors. A2P binds are provisioned at a contracted TPS; exceeding it triggers ESME_RTHROTTLED responses. TPS, not raw volume, determines how fast a campaign or OTP burst clears. See /answers/what-is-throughput-sla, /answers/what-is-cps, and /tools/smpp-error-codes.

- Canonical URL: https://www.broadnet.me/answers/what-is-tps
- Language: en
- Last reviewed: 2026-07-22
- Publisher: BroadNet (https://www.broadnet.me)

## Related

- [All answers](https://www.broadnet.me/answers)
- [Glossary](https://www.broadnet.me/answers)
- [What is a throughput SLA?](https://www.broadnet.me/answers/what-is-throughput-sla)
- [What is a message queue in messaging?](https://www.broadnet.me/answers/what-is-a-message-queue)
- [What is CPS (Calls Per Second)?](https://www.broadnet.me/answers/what-is-cps)
- [What is SMPP?](https://www.broadnet.me/answers/what-is-smpp)
- [How does the SMPP protocol work?](https://www.broadnet.me/answers/smpp-protocol)
- [SMPP error-code lookup](https://www.broadnet.me/tools/smpp-error-codes)
- [SMPP integration](https://www.broadnet.me/developers/smpp)
- [SMS API](https://www.broadnet.me/products/sms-api)