If there is a group of contacts that needs to be omitted from receiving a text blast, but they are not already on a list or campaign, the easiest way to exclude them is to create a Target Group. The Target Group needs to comprise 2 lists using the "Remove From" option, where All Blast Contacts MINUS the Contacts to be Omitted. 

To do this, follow the steps below: 

Step 1. Log-in to the desired account and click Contacts, then click Target Lists.

Step 2. Click the create a Target List button. This will be 1st Target List (All Blast Contacts). This list should include all the contacts, even those that you will want to omit. 

Step 3. Create a 2nd Target list of the contacts you want to omit. 

Step 4. Now that you have both target lists, create a Target Group. 

Step 5. The parameters for the Target group will be as follows: 

• Select Target List 1 for the first field
• Choose the Remove From option
• Select Target List 2 for the second field

Step 6. 

Save the group settings and click Done. This will save the target group and you will now have a list of all contact minus those that you want to omit. 

Step 7.

Send the desired blast to the Target Group that was created to omit the list of contacts. 

For additional resources for creating a Target List: