I want to higlight the vlook up error"Not Indicated" cell to red,

any ideas on how to do this ?


The code below: 
Range("P3").FormulaR1C1 = "=IF(C[-3]="""","""",IFERROR(VLOOKUP(C[-3],SAPUSERMASTER.xlsx!R1:R1048576,2,0),""NOT INDICATED""))"
    'User Dept
    Range("Q3").FormulaR1C1 = "=IF(C[-4]="""","""",IFERROR(VLOOKUP(C[-4],SAPUSERMASTER.xlsx!R1:R1048576,3,0),""NOT INDICATED""))"