iCloud backup from the target device will take place every 24 hours. But make sure that the target device is plugged in, locked and connected to WIFI. You will also need to check the status of iCloud storage. You data will start to upload every 24 hours as soon as 3 automatic backups will take place.

You can check if iCloud backup is enabled/disabled

See FAQ#2

To check the last backup details:

Settings→ iCloud→ Storage and Backup→ Last Backup

You can change WIFI settings:

Settings→ Wi-Fi→ Green→ Choose Network

Note:

The available default backup storage for iCloud is 5GB. XNSPY will not function if there is no available space on iCloud storage.

To check available storage:

Settings→ iCloud→ Storage and Backup