A circular dependency was detected.

Two or more calculated columns, measures or tables depend on each other, directly or through filter context.

Why it happens

• Calculated column A references B while B references A.
• A calculated column uses CALCULATE or an aggregation over its own table and re-enters its own context.
• A measure used inside a calculated column filters the same table the column belongs to.

How to fix it

1. Break the loop — remove the mutual reference, or move the logic into a measure (measures don't create a physical dependency the same way).
2. In calculated columns, avoid CALCULATE/context transition over the same table.
3. Check relationships: RELATED chains can create a hidden dependency cycle.