Huawei
Enable or Disable Auto-Sync Data auf Huawei
Auto-sync data is a global switch that decides whether every account added to your Huawei phone refreshes automatically in the background. It covers app data, settings, documents and calendar entries for accounts like your Google account, cloud storage or email.
When the switch is off, none of your accounts pull new data on their own. You then have to open each app and sync manually, which explains why a contact you added on another device does not show up until you refresh it yourself.
When it is on, all accounts sync whenever the system decides conditions are right, for example on Wi-Fi or with enough battery. This is convenient but can also increase background data use and slightly affect battery life on older devices.
To change the setting, go to Open the Settings ➔ Tap on Users & accounts ➔ Open the menu ➔ Enable or disable Auto-sync data ➔ Confirm with OK.
If only one account causes trouble, for example excessive notifications from a single service, check that account's individual sync options first instead of disabling the global switch. That keeps the rest of your accounts syncing normally while isolating the one causing issues.