I am using Power BI expression and I get this error: [BC30201] Expression expected for the following expression:
=iif ( Fields!DriftCorrection_pH4Value.Value== Blank(), (Fields!DriftCorrection_pH7Value.Value +Fields!DriftCorrection_pH10Value.Value)/2.0, (Fields!DriftCorrection_pH7Value.Value +Fields!DriftCorrection_pH4Value.Value)/2.0)
Could you please help? Thanks in advance.