How can we ask customers to provide their mobile# for text messaging 💬 ?

There are many ways. Anywhere you publish your Colligso-provisioned SMS number, provide clear instructions. Ask them to send "YES" or any of supported keywords to that number. Here are some ways you can publish the number. 

1. Publish your Colligso-provisioned SMS number and instructions on your website.
2. Post it on social media.
3. Print and post it at visible locations in your store(s). 
4. Print on your invoices or payment receipts.
5. Generate QR code and print it with instructions. Place it where customers can see it.

Feel free to reach out to us by opening ticket on this helpdesk to discuss more.