Check Existing Record in the RITM form

[Vengeful]

I have a catalog item to enroll new hardware product.

What should I do to check if the product is existing and prevent to submit the request.

For example this one: The hardware product is already existing. I want to show an info message to the requester that the record is already existing.

[Brad Bowman · Accepted solution]

If not using Service Portal, create an onSubmit Catalog Client Script which passes the Short description variable value to a Script Include via Glide Ajax.  The SI will query the hardware model table for a value matching the short_description field and the variable value passed in from the client.  Back in the client script, return false and show an alert/message if you want to prevent the submit.  If using Service Portal, a common workaround is to do the same onChange of a mandatory variable, clearing that variable if the record is found to effectively prevent submit.