Showing results for 
Search instead for 
Did you mean: 
Frequent Visitor

Flow failing due to null/empty values from multiselects in MS Forms

Hi. Happy New Year.

I am having an issue with a flow that is failing whilst trying to get multiselect data that also contains null values (multi selects) from an MS Form into a Sharepoint list in an array.



I have created a resource request form using MS Forms. You can request up to 3 resources in the one form. For each resource that is being requested, there is a multiselect to capture vetting requirements.

‘Vetting Array post 1’ one is fairly straghtforward – I just convert the string into an array.

However, ‘Compose Vetting post 2’  (and ‘Compose Vetting post 3’) are more complicated (for me anyway!) as either of these could contain null/empty values.

What I would like is to have a flow that would process the multi select data into Sharepoint in an array where data exists and ignore the multiselects that have null values.

I have already referenced the article


and used the comments provided by @AlanPs1 


I modified the 'if' statement to create the following for ‘Compose Vetting post 2’:





If there is only one resource, the workflow completes successfully (including create item)









However, when I add an additional resource (‘Compose Vetting Post 2’), the output is still in a ‘String’ format:





As a result, ‘create item’ also fails.







How am I able to convert this output into an array?

Any help would be greatly appreciated.


Helpful resources

MPA User Group

Welcome to the User Group Public Preview

Check out new user group experience and if you are a leader please create your group


Experience what’s next for Power Virtual Agents

See the latest Power Automate innovations, updates, and demos from the Microsoft Business Applications Launch Event.

New Super Users

Meet the Power Automate Super Users!

Many congratulations to the Season 1 2021 Flownaut Crew!

Power Platform ISV STudio

Power Platform ISV Studio

ISV Studio is the go-to Power Platform destination for ISV’s to monitor & manage applications post-AppSource publish.

Top Solution Authors
Users online (35,513)