Some programs place limits or other restrictions on how many points or miles can be moved in and out of your account. To see any Exchange rules that apply to one of your programs, start by going to the Exchange page.
Click the card icons to choose which programs you want to Exchange out of and into:
Once you have selected both programs, a box will appear above them with a link that says "Show Exchange Rules":
Click that link and the Exchange rules for your selected program will pop up:
Click "Got it" or the "X" in the top right corner to return to your Exchange.