When applying the 2020 release wave 1 you may see a component such as the Dynamics 365 Core Service fail to complete.
First, you may want to check that you have correctly followed the steps on how to opt-in for 2020 wave 1.
To determine the issue – navigate to the solution manager in PowerApps and click ‘See History’
This should then show you the failed upgrade component:
Clicking on…
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Failed solution upgrade applying 2020 release wave 1
Develop 1 Limited Blog – Microsoft Dynamics 365 Solutions – When applying the 2020 release wave 1 you may see a failure
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