Create DL fails with error "The method or operation is not implemented."

when running create dl on a new install, the job fails after the approval step and gives an error of "the method or operation is not implemented", along with a long string (see below) the method or operation is not implemented eval=\[job\[561]{create distribution list co}]\[//tasks/distribution lists/create distribution list] the method or operation is not implemented script line 15 group = job evaluator invoke(parentdl, "=/script", "createdl", new object\[] {parentdl, grouptemplate}) as groupdirectoryentry; innovation activate scriptexception the method or operation is not implemented > innovation activate scriptexception the method or operation is not implemented > system notimplementedexception the method or operation is not implemented at innovation activate resources exchangeresource createdistributionlist(oudirectoryentry ou, string cn, string samaccountname, string description, grouptype grouptype) at script createdl(dlresource parent, xmlelement template) in \ line 65 \ end of inner exception stack trace at innovation activate provisioningscript call(object context, scriptvalue script, string name, object\[] param) at innovation activate evaluator invoke(object context, scriptvalue val, string method, object\[] args) at script main() in \ line 15 \ end of inner exception stack trace at innovation activate provisioningscript executescript(object context, provisioningobject parent, string script, boolean bdebug) at innovation activate evaluator executescript(object context, provisioningobject current, string script, boolean bdebug) the solution was to update the exchange class resources/exchangeservers/class add the relevant exchange server reference for your environment to the end of the "exchangeresource" value in the "class" field as seen in the below screenshot use either 2003, 2010 or 2016 do not use online or any other reference than the 3 listed above