Get alert form other tools on Webhook

The best way would be an alert ingestion api endpoint, a webhook, but that doesn't exist in the product today. 

There are a couple ways you can do this though:

1) Scripted EventSource: you could create a scripted event source that polls the system containing the alerts and returns them to LM. EventSource return data generates alerts.

2) LM Logs Pipeline alert: you could ingest the alert as a log item and setup a pipeline alert that matches that log item.