Paginated reports parameters : Blank() and empty values

Hi v-cazheng-msft ,

Thank you for your time.

Blank values are allowed by default, and null values are not because it's a multi values parameter. I did the test with single value and null allowed, and nothing changed. I think I tried every combinations with/without null & blank. I also changed the parameter's values, switching it with the Caption for example.

To give some context, in our database this field can have a Region value (Europe, North America, etc.), or not when it's undetermined. When there's no value, the field is empty but not null because our data come from Business Central.