In looking through our code base SAM DIR/tomcat/webapps/smarts-edaa/WEB-INF/grails-app/i18n/DMT.properties
That error has the following additional information:
com.emc.msa.dmt.MsaDMTDataSource.ACTION_NOT_ALLOWED=Action {0} is not allowed for the user profile
This indicates that the action is not allowed by the user profile.
Resolution
In this instance the Watch4Net (W4N) user was using a profile that did not have the correct privileges as indicated by the full error found in the code.
To correct the issue please change the W4N profile to an Admin profile.