Say there is feature that is accessible to different users using that they can submit the application if there is one unique id.
I have logged in as user-01 in one browser and clicked on the feature and entered the unique id and it auto-populate all the details but i haven't submitted the application I have kept the tab open.
Same the way for second user in different browser accessing the feature but application not submitted.
If user-01 submits the application acknowledgment is generated. then user-02 can also submit it but should be validated not to submit.
What is the name of this use case?