What does qq friend's auxiliary receipt number mean?

This means a string of numbers used to verify the identity of the user.

When you complain about qq password, you need to provide your friend with the receipt number so that your friend can make an auxiliary complaint. This string of numbers of the receipt number is a kind of evidence to prove the user's identity and ensure the authenticity and uniqueness of the user's identity. Through friend-assisted verification, the pass rate of retrieving qq password can be increased and the success rate of appeal can be improved. If the user forgets the qq password and can't get it back by any means, you can try to get it back by friend-assisted verification.

The validity period of the receipt number of friend-assisted verification is only 3 hours. After this time, you can't use this single number to make an auxiliary appeal. Therefore, after the appeal is completed, the receipt number should be provided to the friend as soon as possible, so that the friend can complete the auxiliary appeal within the specified time.