[Base, Advanced, and Enterprise tiers only] A site ID is a unique string that identifies your installation of Vantage on Azure (DIY) to Teradata Services. A site ID is not required to use Vantage on Azure (DIY) but is required for Teradata Services. (The Developer tier includes only Community support and does not use site IDs.)
Existing Teradata customers with a site ID for a Teradata system on a different platform cannot use that site ID for Vantage on Azure (DIY). You must obtain a site ID specific to your Azure deployment.
When you register for Teradata Services at https://www.teradata.com/Cloud/Azure/Do-it-Yourself/Support-Registration, specify a site ID, starting with AZRTDB and followed by 9 alphanumeric characters. Within two business days after completing registration, you will receive email containing your Master Customer Record, user ID, password, and confirmed site ID.