How to block a flow until the previous run is finished?

[Flow0]

Hello,

I have a flow :

When I receive a mail, the row number 2 in my excel file is updated with formulas according to the body of my mail. Therefore I use "update a row". The results are used to update Salesforce.

Problem : If 2 receive mails at the same time, it can provoke some issues. 

Does It exist a method to block the flow until the previous run is finished ? 

[ekarim2020 · Accepted solution]

Hi @Flow0 ,

Power automate has an option called concurrency control. By enabling this feature you can limit the number of flows that can run at the same time:

Try setting the value to 1 as shown below:

Ellis
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[Flow0]

Thank you so much it's perfect !!!!