During migration it was discovered that the old licenses are not sufficient or the license file expired so a new license file was obtained.
When applying the new license using Help - About and navigating to the file a wizard suddenly starts and this wizard updates absolutely all agents in the Exchange organization. Will this not jeopardize other migrations?
The wizard indeed will try to access absolutely all Exchange servers which have a Mail Source Agent installed and will update the licensing information, but it is important to know that this will be done only for servers which appear in the QMM Exchange project.
When QMM for Exchange has ben deployed and the source and target organization have been added and enumerated it is very important that admins remove from the project all the Exchange servers which do not participate in the migration or the servers which are located in different zones/countries/sites. After this has been done all the changes will be applied only to the servers which are visible (present) in project.
The same applies when applying changes to the agents and using the feature:
Tools - Default - and selecting the checkbox "Apply these properties to all instances of the ..... Agent"
In many situations the service account doesn't have sufficient rights to apply the settings to "undesired" servers anyway, the service account will not have local admin rights and will not be able to modify the configuration file, knowing this one could let the wizard proceed and ignore the errors which are informing about the failure to update the agent. Error will look like:
Cannot access server 'SERVERNAME'. None of the changes you have made will be applied to the agents installed on the server.