Passing multiple parameters to SAP BW Query

solve by creating a seperate "empty" query instead of parameter. I called it YEARS. Just like that:

let
 Source = {{"[0FISCYEAR].[K42015]", "[0FISCYEAR].[K42016]", "[0FISCYEAR].[K42017]", "[0FISCYEAR].[K42018]", "[0FISCYEAR].[K42018]"}}
in
 Source

And the result is used as a selector:

{Cube.ApplyParameter, "[!V000003]", YEARS},

You have to pass the List of List in this case.

To do that lets sat you are stating from Company Code Master Data table, which is already filtered on the Companies that you need.

Write following code as a new query and use it in your Comp Code filter. Note here I had to convert Comp Code numbers into text so SAP can accept them.

let
    Source = #"Company Code Master Data",
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Company Code #", type text}}),
    #"Company Code #" = #"Changed Type"[#"Company Code #"],
    Final  = List.Combine({{#"Company Code #"}})
in
    Final