To enable Template/SenderID restriction for a particular user, we can create a group of users and restrict the access of SMS Sender ID and SMS Template objects to those particular groups only. Follow the given procedure to restrict access for Sender ID/Template:

1. Create two records in these objects (based on the country).
2. Create a group of users based on the privileges that you want to provide.
3. Go to Setup.
4. Under Administration Setup, click Manage Users
5. Under Public Groups, Click New Button.
6. In search drop-down list select User (if you would like to do it on the basis of users)/Role and Internal Subordinates.
7. Click Save.
8. From Setup, access the Administration Setup
9. Click Security Control and then click Sharing Settings.
10. On the SMS Template Sharing Rules/SMS SenderID Sharing rules page click New.
11. Give this rule a unique and self-explanatory name.
12. Under Select your rule type, select Based on Criteria.
13. Under Select which record to be shared select SMS template name “starting with” “template name (starting with the country name)”
14. In “Select the user to share with“.
15. .Select “Public groups” and then select the group which you have created in step 2.
16. .Under Sharing Setting, click Default Sharing setting and then click Edit.
17. .Change the default access for “SMS Template”/”SMS SenderID” object to “Private“. This will change the accessibility settings for all the templates/senderIDs.