Terryallan has it right. You need to be level and disable the suspension before hooking up. While you don't say what RAM model you have, if it's the 1500 with the 4-corner active suspension which is what I have you can temporarily disable the suspension by placing it in "Tire Jack Mode" through the U-Connect settings.
Once disabled then configure the WDH per the manufacturer recommendations with one exception - set the ball height about an inch below the level coupler height instead of slightly above level coupler height. This will prevent the trailer being slightly nose high once the suspension is re-engaged after hooking up as it will immediately return the truck to level. If you start out with the ball slightly higher to account for some sag the suspension will push it right back up there when it levels the truck out. Also, I would disable the suspension before unhooking as well to ensure that it's not adjusting while you are trying to lift and remove the tongue.
After you have set up the hitch I highly recommend visiting the CAT scale and verifying your axle weights to ensure that the proper load has been restored to the front axle.
TT: 2019 ORV Timber Ridge 23DBS, Blue Ox SwayPro 15K/1500
TV: 2019 F-250 XLT SuperCab LB, 6.2L, 4.30/e-locker, 164" WB, 4x4, Roadmaster Active Suspension