I have relocated the kitchen drain connection to a lower elevation in order to properly accommodate a garbage disposer.
The following image shows the back of the kitchen cabinet with the new drain stub out in the lower left. You can see the vacated "hole" left by the original drain connection further up to the right.
I have since plugged the hole.
Next I will fill in the perimeter of the circle with some natural color wood filler, sand it flush and smooth, then I will need to stain it to match the best I can. Since it's the back of the cabinet it doesn't need to be perfect but I would appreciate any advice to make it as invisible as possible.
Yes my plan A was to cut a new piece of wood for the cabinet back so I don't need to plug the hole, however, the copper water supply lines have escutcheons on which require me to take the supply valves off, and once they are off, the ferrule would not come off due to whoever originally installed them overtightened them to the point of strangulation. So I went with plan B to plug the hole instead.
The following image shows the back of the kitchen cabinet with the new drain stub out in the lower left. You can see the vacated "hole" left by the original drain connection further up to the right.

I have since plugged the hole.

Next I will fill in the perimeter of the circle with some natural color wood filler, sand it flush and smooth, then I will need to stain it to match the best I can. Since it's the back of the cabinet it doesn't need to be perfect but I would appreciate any advice to make it as invisible as possible.
Yes my plan A was to cut a new piece of wood for the cabinet back so I don't need to plug the hole, however, the copper water supply lines have escutcheons on which require me to take the supply valves off, and once they are off, the ferrule would not come off due to whoever originally installed them overtightened them to the point of strangulation. So I went with plan B to plug the hole instead.