What are the limitations or conditions for sending WhatsApp messages from the CRM?

Following are the handful of limitations that you need to know about:

• Standard message templates need to be approved by WhatsApp before you can use them.
• You can type and send messages to a customer if he has sent you a WhatsApp message in the last 24 hours.
• You can send approved WhatsApp messages outside of 24 hours.
• You cannot send a media file greater than 16MB.
• Currently, you can send only one media file at a time.
• Supported media formats are -
  • Images  - JPG, JPEG, PNG
  • Audio - MP3, OGG, AMR
  • Documents - PDF
  • Video - MP4 (with H.264 video codec and AAC audio)