Can a custom ServicreNow catalog item trigger a custom workflow(Immediate termination) in SailPoint ISC?

Hi everyone,
We are getting ready to use ServiceNow Service Catalog and would like to understand it for immediate termination and best approach to integrate with ISC.

Our goal is for ServiceNow catalog request to trigger a custom ISC workflow that immediately set inactive lifecycle state and disables the user’s downstream accounts (such as AD).

Questions:

1.Can a custom ServiceNow Catalog trigger a custom ISC workflow?
2.Is this supported out of box by service catalog, or does it require custom API integration?
3.What is the recommended best practice or architecture for implementing this use case?
4.If anyone has implemented a similar immediate termination process, could you share your approach?

Any guidance or implementation examples would be greatly appreciated.

Thanks.

You can use the “External Trigger” workflow trigger for this use case. By leveraging the SailPoint API, you can invoke the workflow externally and automate the disabling of accounts in other connected applications. Within the workflow, use the “Manage Accounts” operation to disable the required application accounts based on your business logic and requirements.

There was an image in the comment, could you please repost it