Here’s a draft text explaining the concept of “fixed” in Tableau, suitable for a user guide, training material, or internal documentation. In Tableau, FIXED is a type of Level of Detail (LOD) expression that allows you to calculate aggregations at a specified dimension level, ignoring other dimensions in the view. It gives you precise control over your calculations, independent of the worksheet’s filtering or granularity. How FIXED Works A FIXED LOD expression computes a value using only the dimensions you explicitly define. Other dimensions in your view — including filters (except context filters and data source filters) — do not affect the result.