If i change my number on whatsapp will it automatically tell/update my contacts?
No, changing your phone number on WhatsApp does not automatically tell or update your contacts. It is your responsibility to inform your contacts about your new number separately. WhatsApp does provide a feature called "Change Number" which allows you to easily change your WhatsApp number while retaining your account information, groups, and settings. After changing your number, you can choose to notify all or selected contacts about your new number.
how does it work exactly?
When you change your phone number on WhatsApp, here is how it works:
1. You need to go to the WhatsApp Settings menu.
2. Look for the option called "Account" and tap on it.
3. Within the Account settings, you will find the "Change Number" option. Tap on it.
4. You will be prompted to enter your old phone number and the new phone number you want to switch to.
5. After verifying your new phone number, WhatsApp will ask you if you want to inform your contacts about the change. You can choose to notify all contacts or only selected ones.
6. If you choose to inform your contacts, WhatsApp will send a notification to the selected contacts informing them about your new number.
7. Your chat history, groups, and settings will be transferred to your new number.
8. Your old number will be unlinked, and WhatsApp will no longer be accessible from that number.
Keep in mind that changing your WhatsApp number will not affect your old phone number's availability for other users. It solely changes your WhatsApp account to use the new number.
However, if I decide to go back to the old phone number I was using, am i allow to do that?
Yes, you can go back to your old phone number on WhatsApp. If you decide to switch back to your previously used phone number, you can follow these steps:
1. Go to the WhatsApp Settings menu.
2. Tap on "Account."
3. Look for the "Change Number" option and select it.
4. Enter your current (new) phone number in the "Old phone number" field.
5. Enter your old phone number in the "New phone number" field.
6. Follow the verification process for your old phone number.
7. WhatsApp will ask if you want to notify your contacts about the change. You can choose whether or not to do so.
8. Once the verification process is complete, your account will switch back to your old phone number, and your chat history, groups, and settings will be transferred accordingly.
Keep in mind that this process requires you to have access to both the new and old phone numbers during the verification process to ensure a successful switch.