Can I change my API key and secret? November 29, 2023 03:00 Updated API key and secret can be changed.If you wish to rotate, please contact us. Related articles Where can I find MERCHANT_ID, API_KEY, and API_SECRET in "PayPay for Developers" to use in building the SDK? I got an error USER_STATE_IS_NOT_ACTIVE when I performed an Increase Capture.What is the cause of this error? How can It use Refund API and Cancel API properly? If the amount at the time of capture is different from the amount at the time of Pre-auth What happens to the users action? Comments 0 comments Please sign in to leave a comment.