There are certain situations in ServiceNow where you may find yourself stuck waiting for a long-running transaction to finish, or you may even find yourself unable to access your instance properly as you have a background transaction running.
In most of these use cases and particularly helpful in use cases where you cannot access the instance interface at all due to a hung transaction, I present to you the following solution.
You can append the following command to the end of your instance URL and this should cease all transactions running on your user account.
An example would be:
If you run this with no transactions running, you will be greeted with the following:
All transactions have completed, nothing to cancel
So there is essentially no downside to this command.