There is no address to send and receive iphone information.

The Display Address option is not turned on; The Show Address option is turned on; Contact information is not synchronized, contact information is synchronized, etc.

The Display Address option is not turned on; The Show Address option is turned on; In the settings of iPhone, there is a message option, which includes a sub-option of "Show sender/receiver". The function of this sub-option is to display the address of the sender or receiver under the information content when sending and receiving information. If this sub-option is not turned on, the address will not be displayed when sending and receiving information. The solution is to enter the "Information" option in the settings, and find and ensure that the "Show Sender/Receiver" sub-option is turned on.

Contact information is not synchronized, but synchronized: contact information is stored on mobile phone or iCloud and needs to be synchronized with AppleID to ensure the consistency of contact data. If the contact information is not synchronized, the address will not be displayed when sending and receiving information. The solution is to check and make sure that contact synchronization is enabled. You can find the "iCloud" option in the phone settings. After entering, find and make sure that the Contacts synchronization option is turned on. At the same time, you can also view and edit the information of the corresponding contacts on the iCloud account to ensure that the address information has been correctly entered and saved.