I have a SharePoint list containing staff information and a MS Form that staff complete to indicate what skills they have and their availability to respond to redeployment requests to help in our Covid response.
I want the staff member's entry in the SharePoint list to be updated whenever they complete the MS Form.
I can create a Power Automate flow to create a new entry in the list each time a Form is submitted but not to update a list entry.
I am failing on selecting only that staff member's list entry. The only unique field in common is email address.
I have tried filtering Get Items but get the error: The expression "EmailAddress eq 'Staff@email" is not valid. Creating query failed.

I have tried using filter array. The flow runs successfully but does not return a record.

Until I return the correct record I cannot use the Update Record...