Step 1:
Login into your account >> on the left panel >> click on the header
Step 2:
Click on New Header
Step 3:
Click On header type and select header:
Step 4:
Click on Category >> scroll down to select your working category, e.g., Technology, Entertainment
Step 5:
Enter the Header that matches your Registered Company Name or Brand Name (Ex- Apple Inc. will use Sender as iApple) and click on 'check availability':
Note: As of now, Operators are approving Headers other than 6 alphabets, but no Operator has the functionality to send SMS with Headers other than 6 alphabets.
So, request you to get any 6 alphabet Header (in correlation with your organization name) approved from Operator and use only that for sending SMS.