You need to pass in a date variable not a string (you can convert to date format using pfDate() function, e.g.:
DateDiff(pfDate(datestring1,'yyyy/mm/dd'),pfDate(datestring2,'yyyy/mm/dd'))

Well, what dates are you using?
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From: forums-bpm-pflow@lawsonguru.com [forums-bpm-pflow@lawsonguru.com]
Sent: Wednesday, October 28, 2009 4:04 PM
To: John Henley
Subject: RE: How to use the DateDiff variable in Process Flow? [00006700:00009155]

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RE: How to use the DateDiff variable in Process Flow?
Posted by: ryand
10/28/2009 03:40 PM

I'm getting a result like this: 1.0810584E12?


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Thank you,
LawsonGuru.com

John's example should work except put two (( in front. i.,e. DateDiff((.....

I am trying to use DateDiff with 2 fields that should already be dates:

DateDiff(PERSACTION_EFFECT_DATE, Today())

I've tried various combinations, but haven't found one that works other than just hard coding the dates and using pfDate.

TIA,
Karen

When you reference a variable from a Query or an AGS call the variable is usually in a String format. You would have to reassign it to a date variable in order for the DateDiff function to work.

Do you know if Today() needs conversion? It gives me an error if I try to pfDate convert it.

Here is my code that isn't working:
DateDiff(pfDate(PERSACTION_EFFECT_DATE,'YYYYMMDD'),today()) > 3

You would be better off creating two variables with the dates you want to compare and then use those variables in your DateDiff function.

This now working, but....
I added a variable strRunDate = DateString(today(),'yyyymmdd')

Then the condition code is
DateDiff(pfDate(PERSACTION_EFFECT_DATE,'mm/dd/yyyy'),pfDate(strRunDate,'yyyymmdd')) > 3

the 2 dates are 10 days apart - its evaluating correctly and sending the email, but I am getting this error

Flow ended with error code (1) - Activity error
Information code: 0
Return message: All Branch Conditions false
Error occurred in activity: Branch6250

Well, that's a Branch error and if you're saying the email is working, it must be a Branch later in the flow?

Branch6250 is the branch that triggers the email or ends the flow.

That error in a Branch usually means that none of the conditions you set up were met and so it throws an error. Are you sure your DateDiff statement is working? Have you tried it where the email shouldn't be sent?

So you have two branch conditions in your Branch node? The first would be your DateDiff statement and the 2nd should be just the word true. The last condition in any Branch node should always be true so that the system knows that if none of the preceding conditions were met then the last one should always be followed.

Hello, I am struggling to get the DATEDIFF function to work in a branch situation. I am just trying to get a basic hardcoded statement to evaluate successfully.
This is the message I am getting in the Console screen when I run it remotely from Infor Process Designer.

Is there something I am doing wrong in the statement below?
Activity Branch650: Error evaluating expression: DATEDIFF(DAY,pfDate('20150701','yyyymmdd'),pfDate('2015/05/01','YYYY/MM/DD')) > 1

Thanks for any feedback!
Wanda

The Branch isn't really a good place to build complicated conditions. I would recommend you create a boolen variable (true or false) and use a JavaScript expression (Assign) to do your function and then update the boolen variable with the results (true or false) and use that variable in the Branch.

Thanks, I will give that a shot.
Wanda

Hi Wanda - The issue is that you have "DAY" as a parameter, but the Pflow DATEDIFF function only takes two dates as parameters, and then returns the number of days between those dates (absolute value).

So, try this instead: DATEDIFF(pfDate('20150701','yyyymmdd'),pfDate('2015/05/01','YYYY/MM/DD')) > 1

David is correct that it is better to do the boolean check outside of the branch, it should work within it as well in this case. I often do this to avoid creating bunches of variables that are really "throw aways".

I tried Woozy's and David's suggestions and am still getting errors:

Activity Assign6030: Error evaluating expression: BoolDayDiff = DATEDIFF(DAY,pfDate('20150701','yyyymmdd'),pfDate('2015/05/01','YYYY/MM/DD')) > 1;
Variables in Process:
BoolDayDiff = null

Activity Assign6030: Error evaluating expression: BoolDayDiff = DATEDIFF(pfDate('20150701','yyyymmdd'),pfDate('2015/05/01','YYYY/MM/DD')) > 1;
Variables in Process:
BoolDayDiff = null

Branch Branch650: Executing this branch node...
Activity Branch650: Error evaluating expression: DATEDIFF(pfDate('20150701','yyyymmdd'),pfDate('2015/05/01','YYYY/MM/DD')) > 1
Branch Branch650: evaluating branch rule DATEDIFF(pfDate('20150701','yyyymmdd'),pfDate('2015/05/01','YYYY/MM/DD')) > 1 to node AssisnStart
Branch Branch650: evaluating branch rule 1 ==1 to node End-SQLEmpD

Thanks for any extra help.

Hi Wanda,

Two things - js is case sensitive, so it needs to be "DateDiff" rather than "DATEDIFF". Also, your second date parameter format won't work. The only two format options are "yyyymmdd" and "mm/dd/yyyy" (also lower case).

This is what worked for me: DateDiff(pfDate('20150701','yyyymmdd'),pfDate('20150501','yyyymmdd')) > 1

Your statement above worked for me also. Thanks for all the great tips. I applied my variables to the statement also in the assign node and I have that working also.
This is a great site and I am very greatful for the quick responses and help from everyone.

Thanks again.
Wanda Schaaf