You could do this via a process or workflow rule that when a new Opp is created to create a new Task due a short time after the creation of the Opportunity and that will pop up the task reminder window in Salesforce.
Or I think you could create a custom button with javascript that when your criteria is met (menaing the proper fields are not blank or null that you populate on your opp) you can have a message pop up and when you click hrough the pop up it can save the record and return the user bacl to the opp that was saved. I have not done this but I have seen this in action.
Hope that helps and if so please mark as th ebest answer.
You could do this via a process or workflow rule that when a new Opp is created to create a new Task due a short time after the creation of the Opportunity and that will pop up the task reminder window in Salesforce.
Or I think you could create a custom button with javascript that when your criteria is met (menaing the proper fields are not blank or null that you populate on your opp) you can have a message pop up and when you click hrough the pop up it can save the record and return the user bacl to the opp that was saved. I have not done this but I have seen this in action.
Hope that helps and if so please mark as th ebest answer.
Shawn