If you have a credit card account and you added a family memeber but the cc company didn't need their ss number or birthday year just their name only does that mean it's not reported on their credit?

It depends on if they were added on as an authorized user or as a cosigner. If you just give permission for someone to use the card, then it will not appear on their credit report. However, if they sign on the card and agree to take responsibility for repayment, then it should appear on their credit report. If you sign for the card, they should ask for a social security number. My guess in your situation is that they were just added on as an authorized user.