I use Sharepoint Online and Sharepoint Designer 2013 workflows. I have a loop workflow that uses variables in date format. When the loop starts again it uses the variable from the first loop.

Normally, when a date field is blank, variable is set as 01/01/0001 and then the value is taken from a date field using REST API and GET call. Then, when the loop runs again and tries to get a date value from second item in the list with blank date, the date remains from the first item in the list.

How can I reset date variables?

enter image description here

The first time the command: then get Asbestos from Variable: item (Output to Variable: asbestosDate) is run, trying to read an empty date field, it returns 01/01/0001 which is what I want.

If the command: then get Asbestos from Variable: item (Output to Variable: asbestosDate) is run, trying to read a date from a field WITH date, it returns correct date:

Then, if the same call is run after the previous call WITH date, the same dates remains stored in this variable.


2 Answers 2


try to "initialize" the date-variable before the REST-call. When the date is not set, your variable will not be modified - so you'll need to ensure it is always modified using "something".

If you're using a SharePoint 2010 Workflow using SharePoint designer you could use the Add time to date-Action like this: enter image description here

  • please could you be more specific?
    – Maciek
    Jul 20, 2017 at 20:15
  • @Maciek: Probably, but what is the question about? SharePoint-Workflows? Created using SharePoint-Designer?
    – Nils
    Jul 20, 2017 at 20:18
  • i added a screenshot and a note below it.
    – Maciek
    Jul 20, 2017 at 20:38
  • I updated the answer to include an image from a 2010-Workflow. I have no 2013-Workflow Services at hands right now.
    – Nils
    Jul 20, 2017 at 20:38
  • @Maciek: set AsbestosDate to BlankDate right after setting BlankDate will not work for you?
    – Nils
    Jul 20, 2017 at 20:41

I fixed my problem by adding ELSE BRANCH to the bottom on every IF statement.

Now it's:


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