Solved
Hi
This occurs because the file is only written in <ThingWorxFlow>\modules\cache\userdata during Flow execution when using the Write File action connector, and deleted right after execution has ended. Refer to the following article describing the same problem:
In summary, you need to connect the output of Write File to the input of Upload File in order to have the file saved to a ThingWorx repository. This will allow the file to be reachable after workflow execution has ended. Hope this helps.
Thanks,
Emmanuel
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