The specific steps for wps to prepare credit card A management details are as follows:

1. First use wps to prepare the data related to credit card A management details.

2. Open the credit card details template and select the menu "Reference".

3. Select "Mail" to open the mail merge function.

4. Open the data source and select the Excel data prepared in the first step.

5. Insert the merge field at the appropriate position corresponding to the template.

6. After inserting the merge field, you can create credit card A management details.