In powerBi, a column is created with below formula, and it is working good.
activedays = COUNTAX(RELATEDTABLE(ActivesInactiveData),ActivesInactiveData[Surface Date])
However, I want to add a filter some thing like
ActivesInactiveData[Topic]<> null
Could you please advice on how to do so, most of the examples on web are using on relatedtable etc - where relation is already build, could you please advice/direct to me what I could find an example of adding filter to relatedtable or filter data from a unrelated table based on field like ID column etc.
Here there is a relation user ID in current table has more than 1 rows in ActivesInactiveData table.