By beating commander Saturn
the key you got from the team galatic grunt dropped is not the one that's for the team galatic ware house you need to open the ware house door with that key and fight your way through it to find another key and that one is for the team galatic main building. You can get additional info here at the related link. (good luck!)
there's a guy in floarama meadow who gives you the windworks key after you beat galactic grunt
once you beat them at the warehouse there gone forever!
its in the galactic ware house in velistone
its in 5 island
team rocket is there
after tem galatic beats your rival, you have to you to veilstone city and go to the Galatic head quarters. When you reach the door, the detective guy is going to catch up with you. He's going to say that he'll catch up with you later or something like that. After, you go to the Galatic ware house which is on the other side of the city. Go up/ inside. the detective guy will catch up with you. he will open a door, then you follow him inside and get the galatic key inside the ware house. Go back to the head quarteres and go inside. inside the head quarters, you will fight the galatic leader, then I think commander Saturn or one of those. Then you will press a botton and set uxie and all those three Pokemon free!
you go to the team galactic ware house
After you give the ducks that medicine you then you go to the galactic base and you talk to the person they will give you a key go next door and theres a shack go in there and open the door with the key that you just got and there should be a key in there then go back in to the galatic ware house and go thru that door and go up tge stairs and go thru the mase of stair and galatic people and that all i can tell you . Hope i help
You get it in heart home city's Team Galtix ware house
what do you mean ? if you just got the seventh badge then go to the lake beside snowpoint city then if you did that go to the main team galatic building in veilstone city then there will be a man stand in front of the building then you talk to him he will drop the ware house's key then go to team galatic team's ware house use the key to open the door then fight your way through it then you will find another key then go to the team galatic main building again open the door with the key you found then fight your way through it then you will fight Cyrus then after you defeat him go after him but you not going to catch him but you will fight Saturn to free the three lakes Pokemon then go to MT cornet to catch palkia
You have to get the 7th gym badge and then you go to veilstone city, then go to the big ware house talk to the galactic grunt outside the big ware house talk to him and then pick up the item he drops then go to the tiny ware house with your new key you can open the door inside. Then get the key in the tiny ware house then with your new key you can open the door in the bigger ware house, get to the top of it battle the boss then get to the trapped Pokemon free them then get to the top of mt coronet then beat the commanders then talk to PALKIA battle PALKIA till he has one HP then catch him.