Whatsapp bulk sender script

General information for the website: Whatsapp bulk sender script for marketing
Kind of development: Application
Description of requirements/features: A person with prior experience and experience with whatsapp bulk sender is required to design a whatsapp Marketing Script
Must be available in the applicant for this work :
A good understanding of the application of whatsapp (the intended whatsapp script and the whatsapp api)
Has a good background and information about Whatsapp channels
I hope that someone who has experience will present in the presentation his previous work, specifically his experience or any information indicating his understanding of the script and the channels of whatsapp, which will enable him to carry out the work without problems.
this video explain the script needed ( must be know whatsapp channels)
https://www.youtube.com/watch?v=-1GQXmB12X4
Extra notes: