You can easily change your old login email or Moon ID to a new login email or Moon ID in Moon Invoice by following the steps below:

1. Open the Moon Books on your device or tap on this link.
2. Go to the Profile section and click My Account.
3. Click the Edit icon to change the old login email or Moon ID to a new login email or Moon ID, then click the tick (✓) to confirm.
4. Later, verify your new login email or Moon ID.