# Why does this formula not work today?

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edited 06/01/20

=DATE(YEAR(TODAY()), MONTH(TODAY()), DAY(TODAY()) - WEEKDAY(TODAY()))

It is the Weekday part of the formula that is stopping it from running. Using INT and VALUE and whatever else I can think of doesn't work.

@Genevieve P

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Never mind. GDI

Did you figure it out? Was it the parenthesis?

=DATE(YEAR(TODAY()), MONTH(TODAY()), DAY(TODAY())) - WEEKDAY(TODAY())

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DAY(TODAY()) - WEEKDAY(TODAY())

3 - 4 = -1

-1 can't be used as a day within a DATE function.

@[email protected] Is that what it was?

thinkspi.com

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Yeah paul got it... this was part of a long running very complex sheet that gathers and outputs current month KPI's. I guess people just weren't checking it in the beginning of the month and/or guessing there just wasn't data in the charts yet. About panicked when I saw it had failed. Ended up simplifying the formula to the below:

=TODAY() - WEEKDAY(TODAY()) + 1

Actually the entire formula is:

=TODAY() - WEEKDAY(TODAY()) + 1 + "-" + (TODAY() - WEEKDAY(TODAY()) - 1 + 8)

to output the current week, I just simplified it for this question.

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@[email protected] Wouldn't "+ 7" work the same as "-1 + 8"? I just know you like to simplify when you can, so...

thinkspi.com

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Lol yeah, I spotted that after I posted it and questioned if I should fix it or not. The reason it is like that is to have a pattern between all the values I've posted, it makes it easier to troubleshoot. But you are correct it could be made more efficient with

=TODAY() - WEEKDAY(TODAY()) + 1 + "-" + (TODAY() - WEEKDAY(TODAY()) +7

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Haha. I noticed you had used +7 in your other thread where you are tracking your more commonly used formulas (which is a great idea).

Having said that... Sometimes it is actually better to go with -1+8 though if it maintains a pattern for troubleshooting. I have a few formulas of my own that are more "complicated" than they really need to be simply because I wanted to keep a specific pattern throughout the sheet for easier troubleshooting.

thinkspi.com

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