# Things to note when setting up the platform

(Including [Contact](https://docs.chatalog.ai/contact-setup/contact) / [Broadcast](https://docs.chatalog.ai/broadcast-setup/broadcast-whatsapp) / [Post Auto Reply](https://docs.chatalog.ai/post-auto-reply/post-auto-reply/post-auto-reply-setup) / [Chat Flow](https://docs.chatalog.ai/crm-quickstarts/customized-flow))

<figure><img src="https://lh7-us.googleusercontent.com/qiwyccfU1lCF9BC3lVJBrTnijogG4l0Eqxyk_yu5PqoGAKABY9N4YSPuYKL5uaa1aqeKQAziI4RtwtQ4WvltRNlvq2ngxV0O_LZvJ8FvKAYlLlit4su3NNgTs9ThInNHpz3pt-NinLcmqz-jV98D6eI" alt=""><figcaption></figcaption></figure>

Also, be mindful of the file size limits on **WhatsApp**

<figure><img src="https://lh7-us.googleusercontent.com/4Y7GopX1HIBbKRPx15_JwQFL04v-FidyTkkTTVDjVpnyz2Am60M6YFn7PV6l4OKnIEr1L6p21CTce6Zb4ieQBqNH5Fpi3JgpF8b9GNhlGceG56eUuHjDrOQZVQuZwWwiXWE1BeRL6jh4b7b2Ea23bbc" alt=""><figcaption></figcaption></figure>