The activation method for Sam’s One-Code Pay is as follows:

1. Open the Sam’s Club APP and enter the “My” page.

2. In the "My" page, find the "Membership Card" option and click to enter.

3. On the membership card page, find the "UnionPay one-code payment" option and click to enter.

4. Fill in the authorized identity information and select bank card verification to complete the binding operation of ICBC debit card starting with 62.

5. After completing the binding, you can use the one-code payment function to pay successfully at the manual cashier channel of the offline store.