Contacts did not transfer to new phone

Hi Lisahung, thank you for posting here in Apple Support Communities. We understand that your contacts have not transferred over to your new iPhone, and we'd be happy to help you with that. To get us started, can you tell us which method you used to transfer over your data? Also, do you use iCloud to store and sync your data? If so, could you go to iCloud website and check to see if your contacts appear there?

If your contacts do appear within the iCloud website, let's check to see if your new iPhone has Contacts enabled in Settings > tap on your name > iCloud. Doing so would ensure that your iCloud Contact data sync too and from your new iPhone and iCloud servers.

In addition to that, we ask that you check out the information within the following support resource: About missing information after you restore your iPhone, iPad, or iPod touch with iCloud Backup - Apple Support

We look forward to hearing back from you.

Cheers!