Custom measure from excel to Power BI desktop

[Anonymous]

I have a excel based Power Pivot model imported to PowerBI desktop dashboard. Excel based PowerPivor model is based on OLAP custom cube specific to my team and custom mappings. 

When I create a custom field (e.g. field Semester with grouping months based on accounting calendar) it does not show up in current POwerBI desktop dashboard however if i create new dashboard importing excel model new custom field reflects.

I have tried refreshing (option "Refresh All") info in PowerBI desktop. Please help I am missing any step.  

Thanks for the help !!

[Greg_Deckler]

You probably have to go into Advanced Editor in Query Editor and edit your Source or Navigation line or some subsequent line. This is a pretty common issue with CSV files and the like.

[Anonymous]

Thanks. Will refersh needs to be done in Excel based Power PIvot Model. I tried refreshing query in PowerBI Desktop but nu luck:(. 

Excel based Power Pivot is designed based on "Analysis Services" data source.