"Is there a prerequisite, checklist or best practice doc when upgrading crm 2011 to 2015 on-premise?" in ClickDimensions Help - comment added by Phil Drake

Annemarie,

There is one issue that I neglected to mention above that is highlighted here. It's very specific though so you may not encounter it:

http://support.clickdimensions.com/entries/62481950-CRM-2015-Bug-causes-solution-update-to-fail-in-upgraded-CRM-orgs

Thanks