I have a MySQL DB and I fetch data from there via PowerPivot into a table.

Then I created a PivotTable from this table data.

Now the column month holds the month of the record as an index from 1 to 12. This doesn’t look pleasing to the eye, hence I would like to replace the index with its respective month name.
Like “March” for 3.
Here comes the concept of the lookupt table into play. So I set up a lookup table for the month names in the sheet “Lookup-Tables”.

I clicked the “create related table” button …

… and next thing I see is the very month table in the PowerPivot window. The respective sheet I called “month names”.

what is missing is the link of course:

As you can see I established a link between the original data table’s column “month” with the lookup table’s column “index”.
but no matter if I refresh or even create a new PivotTable … month still shows the index instead of the month name.
when I go back into the PivotTable I can select the lookup table’s colum “index” which leads to a yellow message stating that “maybe the relationships should be freshly established”. I click “do so” and next I see is a message that says that no relationship could be established!?

I don’t get it?
My goal is pretty common sense and straight forward I think. If you have a different solution from using lookup tables … maybe using DAX (which I don’t know much about yet) … that would be great.
Try this. Unselect the two red checkboxes highlighted below and select the green checkbox. Let me know if this solves your problem