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Multiple approvers required for document approval

We are trying to create a releativly simple (or so I thought) approval process that triggers when a custom "Document Status" property changes to "Waiting for Approval". When this occurs, an email should be sent off to all people listed as Document Approvers. Once ALL approvers have approved the document, it should then change the custom "Document Status" field to Approved, until then the status should remain in "Waiting for Approval". If any one of the approvers rejects the document, we want the status to revert to Draft. Regardless of the condition, we will then send an email to the document creator with the status, and comments.


We are using a Start Approval step with Everyone from the Assigned List, however we the approval flow is running as if it is sequential, rather than parallel.


The email is only sent to the first Document Approver, and doesnt send to subsequent approvers, until the first approver approves (or rejects) the document.


Can anyone see what we are doing wrong with the below?

Community Support
Community Support

Hi @Dazza,


Could you please share a bit more about your SharePoint list?

Could you please show a bit more about the dynamic content filled in Assigned to field of "Start an approval" action?


I suppose that the dynamic content filled in Assigned to field of "Start an approval" action is a Person or Group type column dynamic content and the Document Approvers column is a Choice type column.


I have created the two custom columns within my SharePoint library and the data structure of it as below:15.JPGNote: DocumentApprovers column is a Person or Group type column with allowing multiple selections, the Document Status column is a Choice type column (Waiting for Approval, Approved and Draft).


I think this issue is related to the "Apply to each" action within your flow, I have made a test on my side and please take a try with the following workaround:

  • Add a "When a file is created or modified (properties only)" trigger.
  • Add a Variables-> "Initialize variable" action, Name set to ApproversString, Type set to String and Value set to empty.
  • Add a Condition, click "Edit in advanced mode", type the following formula:


@equals(triggerBody()?['Document_x0020_Status']?['Value'], 'Waiting for Approval')


  • Within "If/yes" branch of Condition, add a "Apply to each" action, input parameter set to DocumentApprovers dynamic content of the trigger.

         Within "Apply to each" action, add a "Compose" action, Inputs set to following formula:



       Add a "Set variable" action, Name choose ApproversString, Value set to output of "Compose" action.



      Under "Apply to each" action, add a "Start an approval" action, Approval Type set to Everyone from the assigned list, Assigned to field set to ApproversString variable. Then add a "Condition 2", left input box set to Response dynamic content, right input box set to Approve. Within middle drop down, choose is equal to.


    Within "If/yes" branch of Condition 2, add a "Update file properties" action, Document Status Value set to Approved. Then add a "Apply to each 2" action, input parameter set to output of Responses dynamic content of "Start an approval" action. Within "Apply to each 2" action, add a "Send an email" action, Is HTML set to Yes.



    Within "If/no" branch of Condition 2, add a "Update file properties 2" action, Document Status Value set to Draft. Then add a "Apply to each 3" action, input parameter set to output of Responses dynamic content of "Start an approval" action. Within "Apply to each 2" action, add a "Send an email 2" action, Is HTML set to Yes.


Image reference:16.JPG





The flow works successfully as below:19.JPG



Best regards,


Community Support Team _ Kris Dai
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Hi @v-xida-msft,


I needed to build a similar workflow and found your post. The workflow overall is running great! Thanks for the information. I have one issue that I'm hoping you can assist with.


The approvals configured in the Apply to each are going out, but in serial instead of parallel. I checked the setting of the Apply to each action and it is set as the default, run in parallel. 


Any idea how I can trigger the approvals to be sent out in parallel instead of serial?






You could of course create parallel actions, however I wouldn't recommend that. Unless there is a different level of approval needed.




In the Approval action you also set your apporval type in your approval action. Using Everyone will send out in  parallel



This works great unless the people you have added to the "Document Approvers" have external email address and they don't have a subscription to "Flow".  

When I tried it with a SharePoint authorized user who is a guest with an external email address I get the folllowing:

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Hi.  My name is Felix.  Were you able to get the multiple approver flow to work? 


If so, could share the logic with me.  I've been trying to get it but have not had success.  



Hi Chris, 


I'm trying to do the same.  Multiple parallel approvers.  I have not had any success.  


Could you send me a diagram of the logic used?  I would greatly appreciate it.  Thank you.  

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