https://support.google.com/googlenest/thread/119818252/nest-yale-lock-ios-app-will-not-allow-me-to-c

[JohnF]

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 Original poster:Michael Kornegay 8013 

Nest Yale lock (iOS app) will not allow me to Change Schedule of users/guests. However, I can Change Schedule on Nest website.

[JohnF]

Hello Michael.

Unfortunately, this has been an ongoing issue. I will be linking this to an original post on the matter. All responses on this post will be locked to keep input organized. Check out the Workaround here. 

-from Brad C.  (Community Specialist)