I tried to integrate PayPal in my iPhone app. But when I tap the "pay with paypal" button for the sandbox enviornment, if the total amount is greater than $10,000 an alert showing "Invalid parameter subTotal" is displaying.
If the total amount is less than $10,000 the app displaying the view of PayPal correctly.
Can anyone please suggest the reason of this issue?
PayPal will reject any transaction of $10,000 USD. The limit varies country by country and also depends on if the user is "verified." Apparently you can't even use PayPal for transactions over $10,000 on eBay.