If possible, one before you made any changes and one (after) that is current .
You may be asked by forum members to post a channel map as well ; same comparison as above: one before and and one after.
EDIT: I just realized you may not have a previous channel map of that module, so this strategy won't work. But, you may still be asked to post a current channel map.
I would review these videos in case you are asked to post those maps.