Question Regarding AW Seasons and Using Multiple Devices

I wanted to ask a question regarding AW seasons because I just started playing on my tablet and I normally play on my phone. I was wondering if it would affect my AW season rewards when for instace I use the tablet to place the defenders then do a few fights on my phone the day after when I am outside and after that finish the war on my iPad when I go back home at night. Would this trigger anything and cause an issue with the rewards? I would be glad if somebody can share their experience if they have any.