Create an audit trail when:
1) Anyone tries to make their lack of planning your problem. The 4:30 customer callback and finding the customer gone REQUIRES an email to them and your boss with your need for more data and how to reach you on Monday. The poor planner will blame you when challenged by their boss why they didn't deliver. Your boss needs to be informed so they are empowered to have your back.
2) You receive verbal orders in an adversarial situation (especially if the other party brings their subordinate/peer/boss as witness). Document to person in authority (or your lawyer) so the story doesn't change later.
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