Thanks Paul.

Sharpening should be done at the end. In general, you should do adjustments in the order they appear in the list. That’s not critical of course, but that’s the general idea.

Chromatic Aberration can be done any time, but I’d do it in the beginning to see if it’s even worth proceeding with the image. If the CA is so bad that the image is useless without correction, then you can just move on.