Hi @ocin33,
Do you want to filter the Firma_ComboBox options based on the current user?
Could you please tell me how you set the Items property of the Firma_ComboBox, is it a Text or Choice column?
I made a simple test for you, please check as below.
I set the Firma_ComboBox Items as below:
If(User().Email="Mateusz...@....pl", ["Option1","Option2"],
User().Email="Julita....@....pl", ["Option1"]
)
If you do not connect Office365Users to your app, please refer to the Label.Text to determine user mail address.
If(Label1.Text="Mateusz...@....pl", ["Option1","Option2"],
Label1.Text="Julita....@....pl", ["Option1"]
)