As a key part of the UDDI Version 3 Specification, Subscriptions provide a simple, efficient mechanism by which system architects, developers, operators and managers can stay on top of changes to records that they depend on. Through a subscription you tell the Registry to notify you of any and all changes to a specific record or set of records. Notification comes in a message either by email, or to your user account. Since asynchronous subscription messages can be serialized into a standard XML format and sent over a transport like SMTP they can easily be tied into automated system processes.

In the Business Service Console, subscriptions can be created for any record type and any record instance found in the registry. Each subscription has a limited time to live in the registry. Its expiration date will need to be specified when it is created. Notification can be sent by SMTP in either an HTML or pure XML format. If the Registry has not been tied into an SMTP server, or if you would rather not be bothered by SMTP messages, you can check for notification updates whenever you log-in to your account.

Since subscription creation is possible only under the Catalog tab, only general user profiles with access to this tab, will be able to set up subscriptions.