UCMA app fails if UseRegistration is True and headers are added in Skype for Business Server 2019 (KB5006013)

Applies To

Skype for Business 2019

Symptoms

On a Unified Communications Managed API (UCMA) 6.0 or 5.0-based server, adding any customer header will cause an app to stop responding if the UseRegistration value is set to True in Microsoft Skype for Business Server 2019.

Resolution

To fix this issue, install the December 2021 cumulative update 6 for Skype for Business Server 2019, Unified Communications Managed API 5.0 Runtime.

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UCMA app fails if UseRegistration is True and headers are added in Skype for Business Server 2019 (KB5006013)

Symptoms

Resolution

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