Having contracted at many big corps, I know this situation very well. The worst issues are the fact that nobody really knows what you're supposed to be requesti

Having contracted at many big corps, I know this situation very well. The worst issues are the fact that nobody really knows what you're supposed to be requesting, the systems you have to use for requesting them are a complete maze, and a lot of the time, you have to request one thing before you can request the next thing (waiting for those tickets to be serviced sequentially, with their multi-day SLAs). But don't stress over it. Your manager definitely knows how bad their onboarding is, and isn't expecting you to be able to do anything about it.