What should be used instead of unless when using conditionally_filter?

Using "always_filter" instead of "unless" in the context of "conditionally_filter" is appropriate because "always_filter" ensures that certain conditions are always applied to the filter regardless of other conditions. In Looker, "unless" is typically used to specify a filter that is applied under specific circumstances, essentially negating a condition, while "always_filter" provides a more assertive approach to prevent unwanted data from being displayed.

This distinction allows developers to create more precise and controlled data models. When utilizing "always_filter," the filter criteria will consistently apply, making it effective for enforcing mandatory filters that shape the report results in a consistent way.

The other options fall short in this scenario. "Access_filter" relates to controlling data access based on user permissions, while "default_value" pertains to setting a standard or fallback value for dimensions or measures. "conditionally_filter" is itself a filtering method and does not denote an alternative to "unless." Thus, "always_filter" is the most suitable option to ensure that filters are consistently applied.