After an upgrade or system change, the Release Automation tab is no longer available within the AWI.
The AWI logs show an error similar to:
Cannot add duplicate collection entry of type 'add' with unique key attribute 'name' set to 'P3P'
(The attribute may not specifically be P3P)
improper configuration of IIS
Release : 12.3
Component : ANALYTICS ON PREMISE
This can be caused by a misconfiguration in IIS. The below is an example to resolve if the issue is P3P:
1.) Go to C:\Windows\System32\inetsrv\config and open the applicationHost.config
Search for:
<httpProtocol>
<customHeaders>
<clear />
Within that section, if there is anything labeled P3P, backup the file and remove that line.
2.) Go to C:\inetpub\wwwroot and open the web.config.
Search for P3P and if anything is found, backup the file and remove that line.
At this point restart IIS