Configure landing page subdomains lp-subdomains
To be able to create landing page presets, you must set up the subdomains you will use for your landing pages.
You can use a subdomain that is already delegated to Adobe, or you can configure another subdomain. Learn more on delegating subdomains to Adobe in this section.
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To access and edit landing page subdomains, you must have the Manage Landing Page Subdomains permission on the production sandbox.
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Any modification to a landing page subdomain will also impact the production sandboxes.
Use an existing subdomain lp-use-existing-subdomain
To use a subdomain that is already delegated to Adobe, follow the steps below.
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Access the Administration > Channels menu, then select Landing page settings > Landing page subdomains.
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Click Set up subdomain.
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Select Use delegated domain from the Configuration type section.
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Enter the prefix that will display in your landing page URL.
note note NOTE Only alpha-numeric characters and hyphens are allowed. -
Select a delegated subdomain from the list.
note note NOTE You cannot select a subdomain that is already used as landing page subdomain. 
Note that you cannot use multiple delegated subdomains of the same parent domain. For example, if ‘marketing1.yourcompany.com’ is already delegated to Adobe for your landing pages, you will not be able to use ‘marketing2.yourcompany.com’. However, multi-level subdomains being supported for landing pages, you may proceed using a subdomain of ‘marketing1.yourcompany.com’ (such as ‘email.marketing1.yourcompany.com’), or a different parent domain.
note caution CAUTION If you select a domain that was delegated to Adobe using the CNAME method, you must create the DNS record on your hosting platform. To generate the DNS record, the process is the same as when you configure a new landing page subdomain. Learn how in this section. -
Click Submit.
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Once submitted, the subdomain displays in the list with the Processing status. For more on subdomains’ statuses, refer to this section.
note note NOTE Before being able to use that subdomain to send messages, you must wait until Adobe performs the required checks, which can take up to 4 hours. -
Once the checks are successful, the subdomain gets the Success status. It is ready to be used to create landing page presets.
Configure a new subdomain lp-configure-new-subdomain
To configure a new subdomain, follow the steps below.
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Access the Administration > Channels menu, then select Landing page settings > Landing page subdomains.
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Click Set up subdomain.
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Select Add your own domain from the Configuration type section.
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Specify the subdomain to delegate.
note caution CAUTION You cannot use an existing landing page subdomain. Capital letters are not allowed in subdomains. Delegating an invalid subdomain to Adobe is not allowed. Make sure you enter a valid subdomain which is owned by your organization, such as marketing.yourcompany.com.
note note NOTE For landing pages, multi-level subdomains are supported. For example, you can use ‘email.marketing.yourcompany.com’. -
The record to be placed in your DNS servers displays. Copy this record, or download a CSV file, then navigate to your domain-hosting solution to generate the matching DNS record.
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Make sure that DNS record has been generated into your domain-hosting solution. If everything is configured properly, check the box “I confirm…”, then click Submit.
note note NOTE When you configure a new landing page subdomain, it will always point to a CNAME record. -
Once the subdomain delegation has been submitted, the subdomain displays in the list with the Processing status. For more on subdomains’ statuses, refer to this section.
note note NOTE Before being able to use that subdomain for your landing pages, you must wait until Adobe performs the required checks, which can take up to 4 hours. -
Once the checks are successful, the subdomain gets the Success status. It is ready to be used to create landing page presets.
Note that the subdomain will be marked as Failed if you fail to create the validation record on your hosting solution.