# Campaign Guide - General

- [How to send a campaign?](https://postman-v1.guides.gov.sg/campaign-guide-general/quick-start.md): This page will teach you how to use Postman.
- [Before You Start](https://postman-v1.guides.gov.sg/campaign-guide-general/quick-start/before-you-start.md): If you are an agency user, please read this before you use Postman to send your messages.
- [Demo Mode](https://postman-v1.guides.gov.sg/campaign-guide-general/quick-start/before-you-start/demo-mode.md): Try out different channels before investing time to procure and set up your credentials.


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