News and Announcements icon

Power Platform CommunityForums Power Automate - Building Flows Can't set string using...

Power Automate - Building Flows

Answered

Can't set string using Set Var

(0) Share

Report

Report

Posted on by marmot777

33

This may be something simple, but I can't update a string var using "Set Var".

First I initialized the var:

Then I try to set the var:

And I get a non-descriptive error:

I also tried wrapping my string in "double" or 'single' quotes. Did not help.

All responses Img

All responses (4)

Answers Img

Answers (1)

marmot777 33 on at

Like (0)

Report
Re: Can't set string using Set Var

After looking closer, your solution works. I just had to change
int(variables('Delta Due Date Text'))
to
int(variables('Delta Due Date'))
in order to reference the right variable.
marmot777 33 on at

Like (0)

Report

Re: Can't set string using Set Var

This example shows it successfully switching on a value of 7, and then erroring.
marmot777 33 on at

Like (0)

Report

Re: Can't set string using Set Var

Thanks Manish for taking a look. When I entered the expression in the Switch function, I got the following error upon running.
I felt the switch was working before. I observed the flow running through Case 2 or Case 3 as expected (and then erroring).
Verified answer

ManishSolanki 15,085 Super User 2025 Season 1 on at

Like (1)

Report
Re: Can't set string using Set Var

Hi @marmot777

Pls try replacing input of switch action with an expression mentioned below:

Below expression needs to be added in the expression box as highlighted in the above screenshot:

int(variables('Delta Due Date Text'))

If this helps & solves your problem, please remember to give a 👍 and accept my solution as it will help others in the future.

Helpful resources

News and Announcements

Welcome to the Power Platform Communities

Quick Links

Leaderboard > Power Automate

#1

Michael E. Gernaey 497 Super User 2025 Season 1

#2

David_MA 436 Super User 2025 Season 1

#3

Riyaz_riz11 244 Super User 2025 Season 1

Last month Overall leaderboard

Featured topics

Start and wait for an approval action

Product updates

Microsoft Power Platform Community release plans