Hello, I have a question to consult. My app includes app purchase, and I will receive the receipt after the purchase. During the testing process, it was found that with the increase of orders without "Finish" (simulating the situation of a user's order loss), the length of receipt would also increase. At present, our test account contains a maximum of 10 orders that are not "finished", and the length of "receipt" is increased from the first voucher length: [12812 characters] [9609 bytes] to the tenth voucher length: [17220 characters] [12913 bytes], currently we are testing in a sandbox environment. My question is whether there is a maximum length limit for the field receipt in a formal environment, and if so, what is the maximum length?