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 FAQ
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.