Are you saying you have created an Object (e.g. Warranty) with a property (Warranty Date) and have manually linked that object to an existing computer...

...but want to be able to define warranties for machines that have not yet been inventoried and somehow link the custom object to that host automatically (via what criteria? Hostname?). What you are suggesting is not, as far as I am aware, OOTB functionality that SLM currently supports.

You could use the Import Data feature in SLM (Home->Import Data->Import New Custom Objects), who's template allows you to define the object and the computer it is associated with...

An alternative to this could be that you define the warranty information as a custom field of the computer and then schedule regular imports using the Web Configurator to populate this field with information you have defined on a CSV/Excel sheet.

To automate this, you will have to:

• add a custom field "warranty end" to your computer objects
• fill this field manually or import values from e.g. an excel file (imports can be automated in the Web Configurator tool)

-or-

• add a custom field "warranty end" to your computer objects
• write a powershell script that reads the servicetag of a computer and gets the warranty information from a vendor portal (some vendors offer this information as a webservice)
• add this powershell script to the Snow Agent scan
• write a sql query that updates your custom field with the scanned value

 So, Colin's approach will be way more a "fast win" than the other solution 😉