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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.


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