Not enough space on iPhone to backup WhatsApp but I have space on icloud

Hi Gllagunos,

For help with backing up WhatsApp data, test the steps below found from the WhatsApp support page here: How to back up to iCloud

"Back up to iCloud

You can make a manual backup of your chats at any time.

Go to WhatsApp Settings > Chats > Chat Backup > Back Up Now.

Automatic backup

You can enable automatic, scheduled backups by tapping Auto Backup and choosing your backup frequency. This will back up your chats and media to your iCloud account. You can choose to include or exclude videos from the backup. The iCloud backup process can take a while to complete, depending on your Internet connection and backup size.

Requirements

• You must be signed in with the Apple ID you use to access iCloud.
• You must have iOS 12 or newer and iCloud Drive must be turned on. 
• There must be enough free space on both your iCloud and iPhone. You need to have at least 2.05 times the space available in your iCloud account and on your phone than the actual size of your backup."

You can also find helpful information in the section "Choose which apps to back up on your iPhone, iPad, or iPod touch" here: Manage your iCloud storage and find more overall helpful information here: Keep third-party app data up to date on all your Apple devices with iCloud

If you need further assistance, reach out to the app developer with the steps here: How to contact an app developer

Cheers.