Production Approval job (Let’s Say A)
This job is to create email notification to the manager and schedule a Production Job to schedule at a particular time. Say 4:00 pm
Need to build as a pipeline with A and B
A has a parameter CRQ Number (Ticketing system), B has to catch that parameter value
and build at the scheduled time. Production Job (Let’s Say B).

A is upstream to B .
Is it possible to Build a Pipeline like this.
When I build job A with a parameter and it should block the Job B and it should only trigger at schedule time.

If yes Please suggest some plugins and possibilities