The reasons could be any of the following: Measure ID is not prefixed with Table Name. Expression is not correct. This error can also occur in newly created measures due to the following reasons: Measure is not created/defined properly. The character ...
Expression measure can be used where a conditional statement (for example, IF-THEN-ELSE) is necessary. You can use a base measure or a computed measure within an expression measure. An expression measure cannot be used within an expression measure.
Expression measure is used in instances where there is a necessity to satisfy conditions using certain conditional statements like IF-THEN-ELSE. A base measure as well as a computed measure can be used/referred within an expression measure; however ...