How to get back old deleted messages

The Apple ID should be signed in the iPhone , you can only recover deleted messages before 30 days Recover deleted messages on iPhone - Apple Support

Wintertime13 wrote:

How do I get my deleted messages

You have 30 days to change your mind and recover them in the Recently Deleted folder. If you delete them from there they will be removed instantly. After that they are gone permanently to free up space. That is what it means to delete data.

If you have important messages you want to have another copy of, you can:

• Screen shot them and save each page of the conversation in photos.
• Sync to a Mac and the export the conversion from Messages on the Mac to a file that you can view or print later.

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