I have a flow which is used to log incoming files from customers;
There is a file size limit for attachments to list items so I need to check the size before i try to attach to avoid an error and the rest of the flow failing;
Both of these methods sometimes return zero bytes for the file size and therefore my flow fails.
Is this a bug?
Solved! Go to Solution.
I've now done some testing, using "Get file metadata" at 0, 10 and 60 minute intervals, uploading files ranging from 100Kb to 150Mb.
It seems that there is an issue if you try to get the file size in the action immediately following the trigger. I would have thought that the trigger would not start until the file upload was complete but this suggests that something is not quite finished when the trigger happens.
So, the result is I'm adding a 10 minute delay after the trigger on all my flows. Not a great solution but will do as a workaround for now.
Hopefully anyone reading this will be helped by what I've found, and Microsoft will investigate.
Hi @Anonymous ,
Have you checked if the source file is empty?
Please share screenshots of your Flow configuration for further analysis.
In addition, you could consider adding a Delay action on top of the Get File content or Add attachment action and then delay these actions for 1-2 minutes.
Please take a try and see if it helps.
Best Regards,
Here is the output of "Get file metadata" which shows the file size as zero;
And the resulting zero is written to the variable, as you would expect;
But when the file is copied from it's original location to another library the file size is correct;
When I check the original file it is not corrupt and has the expected non-zero file size.
This problem is intermittent and does not seem to be related to how large the file is or what type of file.
I've now done some testing, using "Get file metadata" at 0, 10 and 60 minute intervals, uploading files ranging from 100Kb to 150Mb.
It seems that there is an issue if you try to get the file size in the action immediately following the trigger. I would have thought that the trigger would not start until the file upload was complete but this suggests that something is not quite finished when the trigger happens.
So, the result is I'm adding a 10 minute delay after the trigger on all my flows. Not a great solution but will do as a workaround for now.
Hopefully anyone reading this will be helped by what I've found, and Microsoft will investigate.
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