Although credit card opening and activation have different names, they are essentially the same meaning, and there is no essential difference. After the credit card is obtained, it needs to be activated to be used normally. After the activation process is completed, the card opening is completed.

All credit cards are valid. After the expiration date, if the card has not been activated, it will be invalid. Some banks may automatically cancel their credit cards when they see that they have not been activated for a long time.