SP 2013 Workflow: Update a property with an incremental value?

Question

I have a Document Library with an associated Workflow in SP 2013. The workflow runs fines.

I have a property in my DL called "Modified Count"

I try to increment this value every time the WF runs.

I use the "Update Item in Current Item" action in the WF. If I click on Current Item under List I choose "Current Item" I can then set the "Modified Count" to a specific number but is it possible to set it to its current number + 1?

I try to enter "(Modified Count) + 1" in "Value Assignment" but it says "Please enter a number"

Thanks P

Answer 1

I am not sure how you are trying to add but you need to use "Calculate" action to do arithmetic operations in WF. May be that's what you are looking for

Answer 2

As Akshay mentioned, I used the Do a Calculation action in the Workflow. It seems to work nicely. Here are some details:

I created the Modified Count column as a Single Line of Text data type. It might work as a Number, but I didn't test that. I set the default value of the column to "0".

I created the workflow to only run when an item is changed. It's a little bit weird in that it waits for the document to be unlocked for editing before completing, but with a standard Check Out/Check In process, I don't see you running into many problems.

Here is a picture of the workflow I tested:

I hope this helps! :)