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If you also want to approve tasks through Webhooks integrations, then you must also follow the guide here:

https://flexagon.atlassian.net/wiki/spaces/FD57/pages/2856321103/Configuring+the+MicrosoftTeams+Plugin+for+sending+messages+to+users+and+channels+without+webhooksConfiguring FlexDeploy for Teams Operations using User Credentials

Setting up Certificates

You may need to install the certificate for https://graph.microsoft.com/.default into your Java keystore. If this is the case, you will get an error about building a certificate path.

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