I’m ready to start taking payments inside my mobile app and have chosen PayPal Standard as the gateway. The core job is to connect the app to my PayPal account so users can complete purchases without hiccups and I can track every transaction on my PayPal dashboard. Here’s what I expect once the work is done: • Fully working PayPal Standard checkout flow inside the current iOS / Android build, triggered from an existing “Buy” button. • Correct handling of success, cancel, and error callbacks so the app updates the user’s order status in real time. • IPN or Webhook set-up to post payment confirmations back to my server. • Sandbox testing first, then a smooth switch to live credentials. • A brief walkthrough or README showing where the code lives, which PayPal SDK or REST calls you used, and how to update credentials if I ever need to. The mobile codebase is already in place and clean; I simply need the payment layer bolted on and verified. If you’ve integrated PayPal Standard in apps before and can turn this around quickly, let’s talk.