Incremental list based on the value in the last row of the first column

[Anonymous]

Hi all

I have created an automated flow that's triggered when a new response is received for a Microsoft Form.
It adds a new row to an existing Excel sheet that's stored in Onedrive.

However, before I add the row to the table, I would like to add an incremental ID based on the last RFP ID that exists in the spreadsheet . 

This cannot be entered manually using Forms/Excel because

a) Access to the Excel sheet is limited to 2 users

b) Forms are used by multiple users who will have no way to track (apart from asking the 2 users) on what was the last RFP ID

So far, I'm able to get the last row and get its output in Compose but unable to extract RFP ID and increment it to be added in the newly created record. I also note that RFP_ID will probably be required to be trimmed/converted to another format to be allowed to be incremented?

The expression used in Compose is last(body('List_rows_present_in_a_table')?['value'])

Any help will be greatly appreciated!

[edgonzales · Accepted solution]

@Anonymous 

last(body('List_rows_present_in_a_table')?['value'])['RPF_ID'] should get you the specific column of the last row.  Test that first.

If that works, we want to split that on the underscore and grab everything after:

Split(last(body('List_rows_present_in_a_table')?['value'])['RPF_ID'],'_')[1]     (the [1] is saying 'grab the second element of the array we created by splitting the value).  Test that next.

Now, we want to convince Flow/Power Automate that the thing is a number, so we wrap the whole thing in an INT()...so: 

INT(Split(last(body('List_rows_present_in_a_table')?['value'])['RPF_ID'],'_')[1])  Test that part.

And finally, we want to add 1 to get the next increment.

ADD(Int(Split(last(body('List_rows_present_in_a_table')?['value'])['RPF_ID'],'_')[1]),1)

Putting all that in your Compose, should give you the desired result.  We can do that with less Functions, if you want, too.  Happy to help either way.

Keep us posted.

-Ed-

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[Anonymous]

Thanks @edgonzales!

This solution works!

It'll be definitely interesting to know the alternative that you suggested i.e. by using less functions
(if you have the time, of course) 😀😋

[edgonzales]

@Anonymous 

Of course!  It really only saves the last part, and also means setting up a variable.

In the beginning, you would initialize an integer variable, and then set it to be this part:   INT(Split(last(body('List_rows_present_in_a_table')?['value'])['RPF_ID'],'_')[1]) 

Then you could add the action step "Increment Variable" to add 1.

Not super helpful, but is a little bit closer to the 'no-code' stuff.

-Ed-

[Anonymous]

Thanks for helping out @edgonzales , greatly appreciated!