Concatenating Multi-Choice Field

[jawilson]

I have a modern Sharepoint list with Fields including:

Speciality - Choice (Multiple selection allowed)

SME - Person

I'd like to concatenate them into a single line of text. I can't use the Calculated column I believe due to the multiple choice. I tried Flow but really struggling to get anything to work as I keep getting 'Apply to Each' and it won't let me extract the data. 

Anyone have any suggestions?

Many Thanks

[#2]

@jawilson you can do this with a flow in Power Automate and you DO need the Apply to each control as each answer of your multi-choice column needs to be evaluated.  In the list below the Platform column is a Choice column with multiple selections allowed, Person is a Person column and Concat is a single line of text column.  The result is:

The flow that achieves this is as follows:

Next, outside the Apply to each:

Hopefully you can use that in your flow but come back with any questions.

[#3]

Thank you! This certainly looks like it will work. 

However, randomly since yesterday my power automate has changed! It now doesn't let me enter a function/expression. It only allows me to select a parameter from a previous step:  

I'm not sure how to manually enter the expression, or if it is still possible?

[#4]

@jawilson 

Maybe it helps: make your window bigger. If your screen is to small, power automate changes the view mode.