I created a Flows solution

I added a new Cloud flow

The flow asks for a Report Name and Email address. The Success variable is initialised to false.

I used the List rows action...

... to fetch a row from the Reports table

I filtered the results to the Report with the user provided name

I added an HTTP action

I selected the Invoke an HTTP request action

I entered the report's base resource url twice (my unique https://XXX.crm.dynamics.com url)

A connection was created and I entered the HTTP reuqest details/CRMReports/rsviewer/reportviewer.aspxContent-Type: application/x-www-form-urlencodedid={report id}

The flow designer automagically added the Apply to each action

I added three Compose actions

Together the three Compose actions establish the pdf download urladd(indexOf(outputs('Invoke_an_HTTP_request')?['body'],'"PdfDownloadUrl":"'), 18)sub(indexOf(outputs('Invoke_an_HTTP_request')?['body'],'","PdfPreviewUrl"'),outputs('Compose'))replace(substring(outputs('Invoke_an_HTTP_request')?['body'],outputs('Compose'),outputs('Compose_2')),'\u0026','&')

I added a Do until action

I added a Do until action to ensure that the flow would retry the HTTP GET and Email actions until the Success variable was set to true

I added three scope actions

I configured the third scope action to catch errors.

I added the happy path logic to the second scope

I attempt to fetch the report as a PDF file

I attempt to send the pdf file as an email attachment

I set the body of the email, the body of the email attachment, the email to and the email subject.

If no errors are generated I set the value of the Success variable

If no errors are generated I set the value of the Success variable to true

When I run the flow this email is received

The email has this PDF file attachment