By default, the linked member will be retrieved in the current member level. You can specify the desired level by adding a level expression.
|MDX expression that returns a member.|
|String or numeric expression that returns a key value that should be used to lookup a member of the dimension level.|
|Level_expression||MDX expression specifying a member level for the linked member|
With the following expression you can find the issue object of the current issue's Epic link
To display Epic Link created date for the Story issue, use the following formula
Note that both above functions will work only when Story and Epic are on the same level, e.g. Issue default hierarchy and Sub-task hierarchy. In the case of the Epic hierarchy, issues are not on the same level and GetLinkedMember will not be able to find it. Change the linked members level to the default hierarchy "Issue" level to retrieve the results in other hierarchies:
This function is similar to GetMemberByKey function. Note that with GetMemberByKey it is possible to find members in other hierarchies, levels or dimensions.