ProblemIf the below error pops up while deploying Smart Client via the APM Server Manager:
Solution
Granting permission to the Web Site to "IIS AppPool\APMServerManager" as per below in the documentation resolved the issue:Followed by granting permission for the folder App_Data for IIS_IUSRS:NOTE : A similar issue was observed in MaS upgrades. At the time, the work around was to click "No" to the deployment question and copying the files manually. Investigation is going on to find any similar permissions in the Azure Web App that need this setting.
See AlsoSR : 7001132247