How do I activate my American Express Platinum card?

To activate your American Express Platinum card, simply visit the American Express website and locate the activation page or log in to your online account. If you are a new user, you might need to register for an online account first. Alternatively, you can activate your card through the American Express mobile app by entering the necessary card information. Another option is to call the customer service number found on the back of your card or on the paperwork that came with it; follow the automated prompts or speak with a representative to complete the activation process. After activation, you can start enjoying the benefits and services that come with your American Express Platinum Card.