How to make pokemon look as if they were traded?

[-Mew-]

I'm sorry I'm really new to pokesav, I wanted to import a level 17 female rats from platinum, so i went saved pokemon file from the platinum save and inserted the pokemon into my box in SS, now I'm not sure if it's a traded pokemon, I want to make it look as if i've goten it form my platinum game.

Is the pokemon being traded as a outsider pokemon right away or do I have to make some additional adjustments?

I'm really noobish so sorry if this makes somene rage.