Automatic Date tracking and Auto copy 2 different columns daily

Hi I'm new here and new to excel. This is my very first excel attempt ever. I found a template for an employee absence schedule online and adapted it to my needs using my crash course online google education.
I've made a work schedule. I have formatted and formulated all the cells as I'd like them. What I'm trying to do is:

1. When I cancel someone's work shift during the week I'd like the date of that cancel to automatically appear in the corresponding row of column AJ. And since people could potentially get cancelled multiple times per month I need the date in column AJ to refresh with only the latest date. I need to do this on all 12 sheets.

2. I would like to create a small table (AM5 to AN30) that would pull the names and times of the people scheduled to work on just one day. I always assign staffing one day ahead. (Except Friday I do staffing for Monday) This would be only Monday through Friday. The information in the table would change daily. I need to do this on all 12 sheets.

I've attached my spreadsheet with notations and drawings in case I'm not making sense.

I've spent many, many, many days googling and searching but have not been able to solve this riddle. Any help would be greatly appreciated!

Thanks!!

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