Hi there,
I am an expert Web Developer with previous experience in working with WhatsApp for business API. I can create a program that can interact with your users and get the necessary information as required. The program will then connect to ArcGIS online using the REST API to perform the necessary task. To get started, I will need the following information:
1. WhatsApp for business can be used from any services; I prefer Twilio but, you must follow that WhatsApp for business is in beta. All users need to voluntarily join the WhatsApp business account with confirmation text before the program can interact with them. From Twilio, you will need a WhatsApp account and a number.
2. I will need the authorization credentials (access key, secret, token) for ArcGIS online API so I can send the requests required for the job.
3. What environment will you be running the program from? A VPS or a serverless environment (Cloud Function will be ideal in my opinion)
Share the following information with me and I will be happy to get started. Thanks for your time and consideration.