Symptoms
In a Microsoft Exchange Server 2019 or Exchange Server 2016 environment, when a user searches for contacts by using the Microsoft Skype for Business on Mac client, the FindPeople request fails and an "Invalid Shape Specification" error occurs.
Cause
The persona:BusinessPhoneNumbers and persona:MobilePhones properties aren't in the SupportedRequestProperties collection.
Resolution
To fix this issue, install one of the following updates:
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The Cumulative Update 3 for Exchange Server 2019 or a later cumulative update for Exchange Server 2019.
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The Cumulative Update 14 for Exchange Server 2016 or a later cumulative update for Exchange Server 2016.
References
Learn about the terminology that Microsoft uses to describe software updates.
