After an official application of merchant is complete, how many days will it take for the production environment to be issued? January 20, 2022 12:45 It will be approximately 10 business days. Related articles Is it possible to switch over between Web payment and native payment for a service being used in production? I want to cancel my PayPay merchant agreement, what should I do? Where can I find MERCHANT_ID, API_KEY, and API_SECRET in "PayPay for Developers" to use in building the SDK? Is it possible to use the authentication information of PayPay for Developers in multiple websites? Do you provide test users who can test payment and cashback in the production environment? Comments 0 comments Please sign in to leave a comment.