Hi! I've got a flow that saves an E-mail attachment in a specific folder. The attachments are received in an E-mail with the same subject name and the same attachment name (the content of the attachment is different though).
When I save the files in the folder I have to come up with unique sequential names, say CF#1.xls, CF#2.xls, etc. I've created an HTTP request action that counts the number of files that are already in that folder, then I've set a variable that adds 1 to that number of items and creates a unique sequential name.
This worked well until 2 E-mails came at the same time, ie when the second E-mail came the attachment from the first one wasn't saved yet, so I got 2 attachments with the same number and, of course, only one of them was saved.
Has anyone got any ideas how else this can be achieved?
Update:
The problem was solved by tweaking the concurrency control of the trigger as per below. This way, even if 2 E-mails come at the same time, the flow will not be triggered if there is a flow running. Hope this helps.
Accepted Solutions
@krootz , thanks for taking time and providing details. It seems that there is an easier way with concurrency controls:
@Anonymous see HTTP request below.
$select=Name --- only fetches the field/column "Name"
$orderby=Name desc --- sorts it by filename descending order
$top=1 --- returns the 1st filename after the order by which in your case would be the file containing the last sequence used.
The next step would be to create a compose and extract the sequence number from the output body of the HTTP request action.
@krootz , thanks for taking time and providing details. It seems that there is an easier way with concurrency controls:
Helpful resources
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