If there is a problem with the AndroidManifest.xml settings, it may not redirect to the merchant app correctly.
By setting launchMode to "singleTask" or "singleInstance", you can launch the merchant app.
PayPay for Developers Q&A
If there is a problem with the AndroidManifest.xml settings, it may not redirect to the merchant app correctly.
By setting launchMode to "singleTask" or "singleInstance", you can launch the merchant app.