Why are saved contacts not showing up in WhatsApp - briefly?
If your saved contacts are not appearing in WhatsApp, it is likely due to one of the following reasons: either they have not registered their phone number with WhatsApp or you do not have their updated contact information.
Why are saved contacts not showing up in WhatsApp - in detail?
There could be several reasons why your saved contacts are not appearing on WhatsApp. One of the primary reasons is that they might not have registered their phone numbers with WhatsApp. For a contact to appear on WhatsApp, both parties need to have the app installed and their numbers registered. Additionally, ensure that you have granted WhatsApp permission to access your contacts. If you're using an iPhone, go to Settings > WhatsApp > Contacts; if you're using an Android device, go to Settings > Apps & notifications > WhatsApp > Permissions and make sure the 'Contacts' permission is enabled.
Another common issue could be that the phone numbers are not saved in the correct format. WhatsApp requires international phone numbers in the format +[country code][phone number]. For example, a US number should be saved as +1 [area code] [phone number], without any spaces or special characters.
Moreover, if you've recently changed your phone number, you might need to update your profile information on WhatsApp. Go to Settings > Profile and ensure that the phone number listed is correct. If it's not, tap on 'Change Number' and follow the prompts.
Lastly, if you're using a dual-SIM device, make sure that the SIM card associated with your WhatsApp account is the one with which your contacts are saved. You can check this by going to Settings > Account > Dual SIM settings. If necessary, switch your WhatsApp account to the other SIM card.
If after checking these points your contacts still aren't appearing, it might be helpful to uninstall and then reinstall WhatsApp. This can often resolve syncing issues with your contact list.