Fields: first and last name, phone, email, stage, G1 and G2 dates.
One thing worth knowing: a client added this way starts without consent to receive messages. Cronenta doesn’t let you grant that on their behalf. They give consent themselves, either by booking online or by replying to a text. Once they’ve consented, the edit screen can only ever remove it, to record them asking to stop. It can’t be turned back on from your side.