VSTS error in PS tasks

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[Template Name goes here](Template link goes here)

### Issue Details

The script given to import PFX to vault secret works well on local workstations.
But when I am trying to add this to a VSTS pipeline task I am getting "
Exception calling "Import" with "3" argument(s): "Access denied."

### Repro steps (*if necessary, delete otherwise*)
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The issue does not identify a template, file, test, or complete reproduction. Start by locating the PFX-to-vault script and comparing local execution with the VSTS pipeline task; done requires a confirmed cause for the Import access-denied error and a validated pipeline-compatible resolution.

Written by the indexing model from the issue text.