You created your login password when you registered to e-prescribe XYWAV and XYREM in Step 1: Initial Onboarding Form. You will use it to log in to the e-prescribing platform.
You created your passphrase when you went through Step 3: EPCS Registration (2-Factor Authentication). You will use it to e-prescribe controlled substances.
This passphrase (controlled password) is part of your two-factor authentication when you are signing the prescription you created for XYWAV or XYREM.