I know some of our newbs submitted avail changes as soon as their 90 was up & some were surprised that they weren't approved. When I heard them complain, I reminded them that they were HIRED based on this avail & just because it 'changed' doesn't mean they HAVE to approve it. The rare exception is school schedules.
I remember when I was told I had to work both saturday and sunday period, year round. Any availability change wouldnt be approved. Their idea was "College isn't on the weekend, what could you possibly want the time off for" I quit for 9-5 m-f job a week later. That was only one of the smaller reasons, but it stuck with me. I resent the way retail makes people work. ETLs got the full weekend off at least once a month if not twice on rotation. The STL was off 3 weekends a month. I had one 2 day weekend off in the entirety of my year at Target.
GSA/GSTLs get every other weekend off too, at least at my store
But, anyhow, yeah the store hires you based on your open availability, and for most parts if your availability changes due to a legitimate reason (school..) they will approve it. But, what won't be approved is a request to get "Friday Nights" off, or weekends off, or only from 5pm on during the week.. it's just way too hard to schedule around that.
If you have a legitimate reason, ask your STL what's up.. if you don't have a reason I would recommend asking for trades!
If I was a new hire the open availabilty argument works, but I've been here 5+ years. Also, it's a store wide thing.
End whine.
I have the same schedule since I started 5 years ago, Tues - Sat.
Our GSTL/GSAs rotate weekends as well, in example of:
A and B work weekend, A opens, B closes
C and D work next weekend, C opens, D closes
A and B work next weekend, B opens, A closes
C and D work next weekend, D opens, C closes
and then it all starts over from the beginning.