Flow condition for SharePoint list based on multiple value choice field

[NatashaRae]

I feel like this should be easy, but I am failing to find out how to get this to work. 

Basically I have list on SharePoint, and it has a choice column that is Checkboxes (to allow multiple selections, right).

Without getting into too many specifics, I want to make a Flow that will send an email notification to myself if one of the choices is not selected.

So the list item could have between 0-5 choices selected, but I only want to get an email if say Choice #1 is not checked. 

How would I build the flow to do this?

EDIT: I am an extream flow novice, so please explain how to even do with like step by step and pictures are a huge plus. 

[abm]

Hi @NatashaRae 

So check the choice value #1 is true then under the yes part don't do anthing. For the no part you can add a flow step for sending email.

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Thanks

[RezaDorrani]

@NatashaRae 

Since it ids a multi choice field the resulting object in flow for that field will be an array

So the easiset thing to do would be to use expressions

just add a condition and check the length of that column

example:

length(dynamiccontentcolumnname)   is equal to  0

so if length is 0 - that means no chocie selected

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[NatashaRae]

@abm 

ok how do I check if just the choice value #1 is true?

So far my efforts, it will check each and send me an email for every other checked box that is not Choice #1. 

[NatashaRae]

@RezaDorrani 

I'm not sure that will help me, the item could be updated to have choice #2 and #5 checked, so I would still want to know that #1 is still unchecked.

I only want to know when an item is updated if one specific choice is still unchecked. 

And I have no idea what you mean by array or the impact that has...

[abm]

Hi @NatashaRae 

Here is it. 

First declare a variable called IsFound boolean type. Here Sports is my multi-choice column. Pass this to the apply each loop and set the varaible value to true or false. Finally outside the apply each loop you can check the value whether it's found or not.

There might be another way doing this. 

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Thanks

[NatashaRae]

@abm 

I'm sorry, I think that image got compressed to a point that I can not read it or I just don't know how to view images... I'm feeling super dumb and defeated today

Here is what I got so far from what I can read;

[RezaDorrani · Accepted solution]

Hi @NatashaRae 

Ok so make it even easy then

Use Filter data operations action

For the from property - select you dynamic value of choice field

Then for the condition use followign expression

item()?['value']      is equal to       Choice 1

where Choice 1 is the value which you want to check exists or not

next just check length of filter output

if length(filteroutput) is 0 that means it was not selected

If length(filteroutput) is 1 then selected

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[NatashaRae]

@RezaDorrani  and @abm 

Thank you both for dealing with my ineptitude. I don't know all the tools in Flow's tool kit, let alone how to use them.

And I know it's not your fault the GUI is so inefficient with space making it so hard to read in screenshots after compression.

I did get it to work after adding the Filter Data step as described.