Thanks and maybe there are two questions in this situation. I am not sure if the datum conflict is causing the unexpected watershed model or if there is something else I am doing wrong in the process.
In the process of creating a watershed for a lake, see images, I received the datum conflict warning 001003. Reading notes on the warning, it would appear that it can be ignored but...is that always or only in some processing situation? Ignoring the warning, I continued the watershed modeling steps and on two occasions the watershed extends beyond/downstream of the pour point I placed at the lake outlet; see image.
What is causing the watershed to extend beyond the pour point? My understanding is that all the watershed should define a surface that flows into the lake and therefore all the water in the watershed would flow out the lake at the downstream point/pour point.