Step 3 of 10 DLC registration is linking your numbers to campaigns. This is the final step where you will map your numbers to an approved campaign ID.
Access the Brands and Campaign page and click on your campaign. On the Numbers tab, you will see a list with all the US phone numbers assigned to your account.
On this page you will be able to Link or Unlink numbers with your campaign.
When you click Link you will be able to choose if you want your number to be HIPAA compliant or not. Note that if you want to be HIPAA compliant you need to first reach out to your Account Manager.
After you request to Link a number to a campaign, the process will take a few minutes to complete. During this time you will see a pending status of your number linking.
SMS traffic will be automatically changed to 10 DLC as soon as the number linking to the campaign is complete.
Note that a phone number can only be linked to one campaign.
Most campaigns have a limit of 50 LVN (Long Virtual Numbers) linked to it. Carriers would ideally prefer it if users only used a single number. Please note that for most campaign (except 3), the throughput is calculated at the campaign level, not the number itself. So having more numbers linked to the campaign does not increase the amount of messages you can send. Check this page for more information.
If you need more than 50 numbers linked to the same campaign, you will have to select the option "Number Pool" when creating the campaign. In addition, you have to open a support ticket in order to start the procedure of requesting a Special Business Review application to be submitted to T-Mobile. Note that this type of SBR is charged $2000 per request (ie. per campaign). These fees go live on June 1st 2022.
Example of Valid Scenario: Requesting 2000 LVNs linked to a single Agents & Franchise campaign.
If the number goes to status rejected after requesting to link it to a campaign (like in the image above); it is possible that the campaign has not yet been approved by all carriers.
Check the campaign Qualification Details tab to make sure all carriers have approved the campaign.
Then, you can Unlink and Link back the number to the same campaign.
If this still does not work for you or you receive any other error message, submit a support request.