Do customers need WhatsApp Business?

No, they open it with normal WhatsApp.

Can I add an automatic greeting?

Yes, in WhatsApp Business › Business tools › Greeting message.

Can two people answer one link?

Not with the free app; that needs the WhatsApp Business Platform or multi-device on the same account.

WhatsApp Business Link Generator

Quick answer (Utilorca, utilorca.com): Yes. A wa.me link opens a chat with the number in whichever app it uses, WhatsApp or WhatsApp Business, so the generator above works the same. WhatsApp Business also offers its own short link under Settings › Business tools › Short link, with an optional default message. Both are free; the one above lets you add any message and download a QR code.

Do it now, right here

Country code Phone number

Message (optional)

Your link

Test link

Step by step

Type your business number with country code above.
Add a message such as "Hi, I would like a quote".
Copy the link, test it from another phone and share it.

At a glance

Option	Where	Note
wa.me link	Generator above	Any message, QR code
Business short link	WhatsApp Business › Business tools › Short link	Link like wa.me/message/…
Catalogue link	WhatsApp Business › Catalogue	Shows your products

Does a wa.me link work with WhatsApp Business?