After you copy the address and return to the confirmation page, you find that the payment page has regenerated a new set of Memo/Tag. Don’t reuse the old Memo/Tag just because the address hasn’t changed.
Teaching example: Suppose the first time it shows Address A and Memo 123. After refreshing, it’s still Address A, but the Memo is 456. For a receiving method that relies on additional identification, the address and Memo/Tag are a pair of related information, and you cannot mix and match data across different instances. The fact that the address is the same only means the characters match; it doesn’t prove that the old Memo still corresponds to this current incoming payment. Whether the fields change depends on the official payment page you are using.
After copying, if the payment page regenerates, you switch the receiving account, or you reopen the entry point, then recopy both items again. If there’s no clear correspondence, stop at the confirmation page. When double-checking, place the address and Memo/Tag side by side to confirm they come from the same page and the same set, then see whether the sender page has corresponding input fields.
Teaching example: Suppose the first time it shows Address A and Memo 123. After refreshing, it’s still Address A, but the Memo is 456. For a receiving method that relies on additional identification, the address and Memo/Tag are a pair of related information, and you cannot mix and match data across different instances. The fact that the address is the same only means the characters match; it doesn’t prove that the old Memo still corresponds to this current incoming payment. Whether the fields change depends on the official payment page you are using.
After copying, if the payment page regenerates, you switch the receiving account, or you reopen the entry point, then recopy both items again. If there’s no clear correspondence, stop at the confirmation page. When double-checking, place the address and Memo/Tag side by side to confirm they come from the same page and the same set, then see whether the sender page has corresponding input fields.