Once I've checked everything at least twice I go to the last page. This shows the balance of forces. If everything looks good, and it always does because I don't care about what the balance says, then I save the game.
To save the game you must have things:
At least one VPL.
At least one NATO unit.
At least one Soviet unit.
All units in setup zones.
Something in the Main, Player 1 and Player 2 briefing boxes.
If you don't have all those you can't save the scenario.
If you are password protecting the scenario pick something you can remember. Because the game remembers and if you get it wrong you won't be editing your scenario in the future.
Once you've done all that the scenario is ready for the most important part. To see how it plays during game play. The most important part of making a scenario is the playtesting.
Good Luck with your new scenario!
Good Hunting.
MR

The most expensive thing in the world is free time.
Founder of HSG scenario design group for Combat Mission.
Panzer Command Ostfront Development Team.
Flashpoint Campaigns: Red Storm Development Team.