Power Automate can add user accounts to SharePoint Online list items. If the person column accepts a single account, then the assignee claims are passed as a string. But for multiple accounts, the assignee claims are passed as an array.

Illustrating this, loop through a list of approvers, then add them all to a list item…

Regardless of the trigger, the workflow should have 1 object variable and 1 array variable. Next, get the list of approvers:

As the list of approvers are enumerated, there are a few actions nested within the for-each loop:

• Set the current item to the object variable,
• Compose/ build the claims object, then
• Append the compose action output to the array variable:

Within the compose action, the claims object is constructed as a key-value pair. This populates the claims of the current enumeration item…

The compose action of Figure 4 formats the user claims from the tempObj variable:

variables('tempObj')['Approver']['Claims']

Lastly, with the array constructed, create a new SPO list item. Note, the person column will need to be switched before it can accept the array variable.

After a successful run, the flow output will show the claims as an array of objects!

Finally, open the SPO list and review the new item with the multiple accounts assigned:

Conclusion:
Assigning multiple accounts to a list item isn’t impossible, but just requires a few extra steps. Yet, still an easy-ish thing to configure…

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