Power Query error (in column)

[Anonymous]

Any help on adjusting this code to get rid of this error would be appreciated.   If I click on  "error" in the custom column, the error message is below.   But not sure how to adjust the formula to get rid of this error.  

The formula itself does not show an error, but clearly it's not working:  

if
([Customer Requested Ship Date]) >= Date.StartOfMonth(Date.AddMonths([Locked File Month]), 2)
and
([Customer Requested Ship Date]) <= Date.EndOfMonth(Date.AddMonths([Locked File Month]), 2)
then "True"
else "False"

[AlexisOlson]

You closed your parentheses for Date.AddMonths before specifying how many months to add.

Try this:

if
[Customer Requested Ship Date] >= Date.StartOfMonth(Date.AddMonths([Locked File Month], 2))
and
[Customer Requested Ship Date] <= Date.EndOfMonth(Date.AddMonths([Locked File Month], 2))
then "True"
else "False"

[Anonymous]

Hi @AlexisOlson    That seems to have worked!  But getting one issue:    It does return True or False, but if I "load all" I see an error that says  "expression.error we cannot convert the value null to type logical"   Any idea what that is about?   

[AlexisOlson · Accepted solution]

Probably one of your date columns has a null. Try inserting this immediately after your if

[Customer Requested Ship Date] <> null and [Locked File Month] <> null and

[Anonymous]

@AlexisOlson    Thank you!   Everything provided is working perfectly.