Applicable to End Users
Users with an existing WeChat accounts can link between the WeChat and WeCom accounts. A linked WeCom account can easily import the existing WeChat contacts.
To verify if your accounts are linked, on your WeCom app, click Me > Settings > Accounts > WeChat.
Linking Accounts
To link accounts:
On your WeCom app, click Me > Settings > Accounts > WeChat.

Tap Not Linked and click Agree.

Click the permission in the green box.

Adding Contacts
Once the accounts are linked, you can add WeCom and WeChat accounts.
To add WeChat contacts to WeCom:
Tap Add From WeChat friends.

Click Add next to the WeChat contacts you wish to send an invitation to.

Click Send invitation.

Note
Bulk invitation to all WeChat contacts is not supported.