I need a formula to Subtract Today from a date and return the difference in weekdays only if another field is blank

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I need a formula to Subtract Today from a date and return the difference in weekdays only if another date field is blank. So basically I want to know how many days late an order is if it hasn't shipped. I have a order due date field and a ship date field. 

So I want to count the number of working days past due if the ship date field is blank.

Thanks for your help. 
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Scott

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Posted 2 years ago

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Chris, Champion

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Formula Numeric field would go like --

if(
isnull([ship date]),
weekdaysub(Today(),ToDate([order date])),null
)
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Scott

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Thank you for the help. I am getting the following error.
The types of the arguments or the number of arguments supplied do not meet the requirements of the function ToDate.

The function ToDate can be used with the following arguments:
  • ToDate (Text x).
  • ToDate (Text x, Text f).
  • ToDate (Date/Time x).
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Chris, Champion

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The [Order Date] field may already be a Date type, so just remove the function ToDate() that is wrapped around the [Order Date] field.
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Scott

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So this is what I have now and it is not returning a value.

if(isnull([Ship Date]),
weekdaysub(Today(),([Booked Date])),null
)
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Scott

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I was able to get it to work by changing the formula type. Thank you!
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Chris, Champion

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I believe it has to be formula numeric. Thanks for the follow up.
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Michael Barrow

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Check the setting on your Ship Date field for "Treat blank values as '0' in calculations". Make sure that is unchecked.