Numbers SS not syncing with iPhone

Have you made sure both devices are signed into the same iCloud account and -

on the Mac:

at System Settings (Preferences) > your name > iCloud you should check to make sure iCloud Drive is turned on and that Numbers is also turned on (in the list that appears after you click the Options... button)

on the iPhone:

at Settings > Your name > iCloud make sure iCloud Drive is turned on and that Numbers is checked in the APPS USING ICLOUD section (you will probably need to tap Show All to see the list of apps including Numbers).

If all those settings are correct and you still don't see your Numbers documents syncing, then you could try signing out of iCloud and then back in again.

SG

The first hit when you do a search for "iPhone sign out of iCloud" is this one:

Sign out of iCloud on your iPhone, iPad, iPod touch, Apple TV, or Mac - Apple Support

And this one for signing back in:

Sign in to iCloud on all your devices - Apple Support

In case you are not aware, this is a user-to-user forum.

SG

No, Collaboration is not required. But you do need to be successfully signed into the same iCloud account on the devices you want to sync.

Have you been to Numbers for iCloud at iCloud.com to check that your documents are there, up in the cloud?

SG

Syncing does save the edits. The device on which you made the previous edits is not connected properly to the iCloud account. Maybe try signing out again, and then back in, then give it a few minutes.

SG

Great to hear you got it working! Sync can sometimes be a little balky and mysterious.

SG