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The method 'Run' has an invalid value for parameter 'Sendanemail_To'

I'm using a PowerApps button flow to generate automatic notifications and get the mentioned error. I use a people picker 'cboManager' and pass cboManager.Selected.Email to the Flow, but get the 'invalid value for parameter' error.


For troubleshooting, I put a label with Text = cboManager.Selected.Email on the form, it correctly shows the email address of the person I select in the people picker.


The Flow is set to expect a string

            "properties": {
                "Sendanemail_To": {
                    "type": "string"

But the flow actually never runs, as it fails when passing the parameter. What am I doing wrong?


I did some further testing, and found a workaround. First patch the record with cboManager.Selected.Email, then use ThisItem.Manager.Email to pass the value to the PowerApps button flow. So now I'm quite intrigued:

Why is it that I can use the cboManager.Selected... string values to correctly patch the item, but cannot pass them as parameters to the flow, but have to use the patched values from the item instead, and that works???

        Manager: {
            Claims: "i:0#.f|membership|" & cboManager.Selected.Email,
            Department: "",
            DisplayName: cboManager.Selected.DisplayName,
            Email: cboManager.Selected.Email,
            JobTitle: ".",
            Picture: "."


Community Support
Community Support

Hi @Anonymous ,


How is your flow created? Could you more details on the flow configuration?

How did you show the Emails on the Dropdown control? Please share more details on your app.

According to your description, I have made the following tests.

First, create a SharePoint list which contains a person or group column and a Title column.

Second, create a flow with a PowerApps trigger, then create item in SharePoint list. Set value of fields Title and EmployeeName as dynamic content Ask in PowerApps.


Then I did the following different ways for testing.

One way is to start the app from data with SharePoint List 11. On the EditScree, add a button under the form and set its OnSelect property with code likes below, which is working properly.



Another way is to start the app from blank, then connect to SharePoint List11 and Office 365 Groups.

Add a Dropdown control with the following code to show members:


Then add a Text input control and Button, set the OnSelect property of the button as:


It is also working properly.


The issue you’ve mentioned could not be reproduced by me. Please share more details to help reproduce.


Best regards,



Community Support Team _ Mabel Mao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Not applicable

Hi @Anonymous thanks for posting in the community. Can you advise if you're still experiencing this issue and if the above response was helpful?


Thank you,



Not applicable

Thanks, I haven't touched it again. As a matter of fact, it worked fine for several months until I edited the App the other day, for a minor cosmetic change with icons. After that I started getting the "invalid parameter" error. As I said, I was able to fix it by passing the value from the patched list instead of the combobox selected item as parameter to the flow.

What I noticed though is that this particular combobox brings up the first few entries in the list as soon as you select the control. I compared with other comboboxes on the same edit form but couldn't identify the property that would affect this behaviour. Any clue?

@v-yamao-msft and @Anonymous 


I also have this issue.  I have the email selected in a SP list.  When i call the field in Powerapps and try to run a flow using that Lookup value, i get the same error about the parameters are invalid. I tried your suggestions and they did not work.  Does it have anything to do with the fact that the field has a filter:


Distinct(Filter(CRLProcessRoles, Title=Dropdown1.SelectedText.Value),EmailAddress) to lookup the column value?


So what happens is that the reviewer chooses a role from the dropdown and then their email address is shown.  That shown email address is the one that i am using to run the flow.


I cant seem to get it to work properly.  If i hard code the email address, it works fine.

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