The specific steps for setting customized information for customized products on JD.com are as follows:

1. Open the JD.com website, enter the product customization page, and find the product you want to customize on the page.

2. Click the "Start Customization" button to enter the customization page. On this page, you can set the detailed customization information such as the color, style, size, etc. of the product you need. Please note that you may need to complete different customization information in different locations on the customization page. For example, on the product details page, you can choose the color, style and quantity you want to customize, while on the checkout page, you need to fill in your delivery address, contact information and invoice information, etc.

3. Enter the customization information you need, confirm the options and save the changes. You can submit the order and make payment according to the prompts on the page.

4. Before confirming the order, please check your customization information again to ensure that the information is filled in correctly and meets your requirements.

5. After payment, you can view your customization information and order status on your order page, or view the order details through the client.

It should be noted that before submitting a customized product order, please be sure to carefully read the terms and conditions on the product customization page and make sure you understand all the details and customization information of the product. When choosing mainstream products such as customized credit cards, you need to fill in some sensitive information. Please ensure that your information is safe and fill it in carefully. If you have any questions when setting up customized information, please consult JD customer service in time.