Im no expert but I seem to be struggling with this.

I have a calculated column field called [Review Days] for which I hope to enter an amount of days that a document will need reviewing. 1 year will equal 365 days, 2 years, 720 days etc.

I can get this to work no problem.. the problems is, if [Review Days] is blank then I want to default this field value, [Next Review Date] equals [modified] + 1825 days or 5 years.

I kinda see something like this:

=IF(  ISBLANK([Review Days])  ,  ""  ,  Modified+1825  ,  [Modified]+[Review Days]  )

Any help will be much appreciated.

Thanks Mike

  • 1
    An IF function has True/False results, you have 3 results Commented Apr 11, 2017 at 11:37
  • =IF(Review days="";[Modified]+1825,[Modified]+[Review Days])
    – user67129
    Commented Jun 7, 2017 at 13:25

2 Answers 2


Try this:

=IF(ISBLANK([Review Days]),Modified+1825,Modified+[Review Days])

Ensure that the calculated column is of Date type.

enter image description here

More information on ISBLANK:


Try this

=IF(Review days="";[Modified]+1825,[Modified]+[Review Days])

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