Step 3. Setup outgoing SMS Message field and send a test smsSetup a field for Contacts (or/and Leads) in CRM which you can use for sending outgoing SMS
Let's do this for Contacts first.
For this Go to the Contacts page here
https://crm.zoho.com/crm/tab/Contacts/And then click on any Contact (no matters which one),
and click on Customize Business Card