# ISBLANK formula within IF formula

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The issue is with this part of the formula:

If Date82 is a date, then it runs the following...

IF(TODAY() > Date82, "Operational",

IF(TODAY() > Date82 - 60, "Pre-Operational"))

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You hadn't specified any other options for if Date82 was a date. This can very easily be corrected though. I just need to know exactly what you want the output to be for these situations.

Basically, if Date82 is less than 60 days away, it is "Pre-Operational". If Date82 is in the past, it is "Operational" is what we currently have. We could easily specify that if Date82 is a date but it is more than 60 days away to make it "Under Construction". I just need to know if that's all you want for Dates82 being a date or if you have other criteria that needs to be taken into account.

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If Date82 is less than 60 days away = "Pre-Operational"

If Date82 is in the past = "Operational"

If Date82 is a date but more than 60 days away = "Under Construction"

If Date82 is blank = Go to the next evaluation where it looks to see if Date72 is in the past.

If Date72 is in the past = "Under Construction"

If Date72 is in the future = "In Development"

If Date72 is blank = "In Development"

Does this help? I think I outlined every possibility. I know you've spent way more time on this than you wanted to, and I really appreciate the help.

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No worries. Here's something that covers everything listed above.

=IF(ISDATE(Date82), IF(TODAY() < Date82 - 60, "Under Construction", IF(TODAY() > Date82, "Operational", "Pre-Operational")), IF(ISDATE(Date72), IF(TODAY() >= Date72, "Under Construction", "In Development")))

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I've just been entering this formula into my project files and the only issue I see is that when Date72 is blank, it returns a blank value. If Date72 has a date in the future, then it puts "In Development". If Date72 has a date and is in the past, it puts "Under Construction." It's only when it is blank, that it doesn't return the correct value. Thanks.

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=IF(ISDATE(Date82), IF(TODAY() < Date82 - 60, "Under Construction", IF(TODAY() > Date82, "Operational", "Pre-Operational")), IF(ISDATE(Date72), IF(TODAY() >= Date72, "Under Construction", "In Development"), "In Development"))

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Here you go.

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This worked with all options verified. Thanks again for your help with this. It is much appreciated.

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Excellent. Happy to help!

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