Flow fails to send approval email to the approver/email assigned within SP list

[Amanda1]

Hi

I am trying to send an approval email to the person assigned in the SP list.

I have SP list that allows the item creator to assign the line manager through a Person/Group column.  I have used the Line Manager email as the Assigned to for the approval.

I was able to get this to work yesterday in another flow using the same logic and person assigned, however for this flow it gives me the following error.

BadRequest. The request failed. Error code: 'InvalidApprovalRequestor'. Error Message: 'The approval requestor must be a single, valid user account within your organization.'.

The email is a valid user account within the organisation and was able to receive the approval email yesterday, via a different flow for another list.

I am deliberately using the person assigned in the SP list for the approval, rather than the using a get manager function. We have a lot of movement within our organisation and the profile information is not always up to date. So we need to allow a user to select the line manager in the SP list.

[PrasadAthalye]

Is the Line Manager field a multi-select in the SharePoint list? Is your expectation to assign 1 task to multiple people? If yes, you can append their email in a string inside loop and finally use Approval action outside with the variable in assigned to.

[Amanda1]

They can only select one person in the SP list, and the approval is to be assigned to one person only.

[Amanda1]

if i enter an email/person directly into 'Assigned to' rather than using dynamic content from SP list, the flow works fine.

[PrasadAthalye · Accepted solution]

Can you check the configuration of Assigned To column in Sharepoint? Allow Multiple Selections should be set to No

Also can you please upload entire flow picture?