Just in case you're wondering, you CANNOT activate your EA Steam games on Origin.

So, I have Mass Effect 1 and 2 on Steam, and it's known that you can activate your EA games from Steam on Origin. So, I'm like "Well, let's give Origin a shot, I have a few games on an Origin account anyway"

I try the ME1 key a few times on the Origin program, nothing happens. I find a product activation key page, and successfully activate Mass Effect. It asks me to create a third ID to tie to my EA account, and says I just need to download EADM to get it. I look in my Origin library, and it's not there. So, I do live chat for help:

Thank you for choosing EA. A representative will be with you shortly.

All representatives are currently assisting others. Your estimated wait time is 1 minutes and 38 seconds. Thanks for your patience.

All representatives are currently assisting others. Your estimated wait time is 2 minutes and 5 seconds. Thanks for your patience.

All representatives are currently assisting others. Your estimated wait time is 1 minutes and 10 seconds. Thanks for your patience.

You are now chatting with 'Clayton'

• Clayton:
  Thank you for contacting Origin Help. My name is Clayton. How may I assist you today?

• you:
  Heya!

• you:
  Well, I have Mass Effect 1 and 2 Digital Deluxe on Steam

• you:
  and I'm trying to activate them on my Origin account

• you:
  but....I just can't quite figure it out

• you:
  I did the thing at https://activate.ea.com/applybeslddcode.do#

• you:
  and it said it tied it to my account...but, I don't see it in my Origin library

• Clayton:
  There is no way to transfer this download

• Clayton:
  Some games work for Transferring to Origin, but none are supposed to and we do not support it

• you:
  After activating your product, you will need the EA Download Manager application to download your product. If you do not have the EA Download Manager, you can download the application with the provided link bellow. If you already have the EA Download Manager, simply login with your EA account used to activate the product. The EA Download Manager automatically verifies that you are the licensed user of your product, so it must be installed on your PC in order for you to download any product activated. Download the EA Download Manager

• you:
  that's what's on the web page

• you:
  after I successfully activated it

• you:
  Product Successfully Activated You have successfully activated the following product(s): GAME-MASSEFFECT for your account: ****@gmail.com

• you:
  being at the top

• Clayton:
  And the game is not on your list?

• you:
  I've tried refreshing my origin library several times, and it just shows Burnout Paradise and Battlefield: Bad Company 2 Digital Deluxe

• Clayton:
  Like I said though, we do not support the transfer, so there is nothing I can do about this

• you:
  but your site said it was successfully activated?

• Clayton:
  Yes, but it's not supposed to work

• Clayton:
  That is why it is not working

• you:
  Well, thank you anyway, Clayton

• Clayton:
  No problem, sorry

• Clayton:
  Thank you for contacting Origin Support

Thank you for chatting with us. Please click the "Close" button on the top right of the chat window to tell us how we did today.

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This is nonsense, they have no idea how their site/platform is running.