Have you officially been tasked, in writing, to supervise her in your managers absence? Does she know this?
sort that first
Then set up regular 1:1 with her for every 2 weeks to start with. These should be there to help her succeed in her probation period. Once settled over first 2-3 months I’d normally then drop to monthly like all my staff. Have a set format- her objectives for next 2 weeks (she tells you, you steer her or raise new ones, remove changed ones etc) , what she needs help with, what she needs you to decide, what training she needs, what are her “roadblocks”. Also capture holidays and other absences.
as part of that state you expect her to obtain feedback regularly on what’s she’s doing, how she’s doing it,. Explain that feedback on her performance is crucial to help her develop and to meet probation criteria. Explain to her this should be in form of STARs - situation, task action and result.
Then State that you have identified one area, and need her to think about and come back to you with her thoughts in next 1:1, on how she needs your support to develop on that. Then tell her that there is a need for her to respond a little less defensively to questions,clarification, for, her colleagues. Then say I’ll give you 3 examples. Those 3 examples should be as STARS - S= a brief reminder of the situation, T= the task she was doing, agian brief clarification, in this case ensure you say update and load back to be easily available for colleagues A= action- explain what happened when you went to look, why you couldn’t find, and her responses to you. Factual. Try to quote as much as you can of the exchange. R= result = how that interaction made you feel- I feel that in raising the issue you elevated the emotional stakes, I feel you were not listening to the issue and could have pointed out you’d moved and renamed file, wasting company time, etc. also point out that colleagues need to know they can feed back issues “safely”- we all make mistakes, and so,e times these need to be raised and discussed. There is a clear line between bullying and feedback- one is destructive and the other constructive. She will not grow and develop without being open to constructive feedback. She is early in her career and it’s vital she learns this.
keep to “I” statements or company statements not “you”.
When you’ve given your STAR, ask her for her side of the A and R bit. ask her why she renamed and moved file- her side of the A ….discuss it with her. Try to understand why, from her perspective she did what she did- identify root cause- training? Mistake? Or she thinks she has a better filing system? Discuss these with her…address root cause. But then come back to how she managed it and impression she created in her behaviour ….
repeat with details of STARs for, your colleagues- you need to get these details and be clear, precise and exact.
don’t ask her for immediate responses, ask her to reflect on how she might approach the same STARs differently ?
Then follow up in a couple of weeks
Document everything- the STARs you used, what you agreed, what you didn’t agree, what her root cause reasons were etc . Ask her to read your document via email next day, and agree with it in writing or add/ amend as needed
if she reacts with emotional outbursts, remind her you are acting as her manager. You are responsible for ensuring she succeeds in the company and meets her objectives both in terms of tasks, but also in terms of being part of the team, the culture etc. repeat it is vital she understands that managers , and even colleagues need to provide feedback or raise ad hoc issue safely.
if she looses it, say you will document what has been discussed to date, but will not continue with the meeting at that stage. Go straight to HR and tell them you have problem you need their advice on how to go forward with. If necessary, ask them to come and observe your next 1:1 with her. That way they can gauge the situation for themselves. When talking to HR, make sure you state “I need help/adivce” not “she is this”
equally do not respond to any tears if she starts crying- hand over some tissues, ensure she has water (make sure you have to hand before meeting) , but don’t draw attention to it- tears are often sign of frustration and high emotions so are frankly, best ignored nicely with a “are you ok to continue this conversation?” so that she can regain composure with some dignity - nothing worse than a boss turning on full attention sympathetic or otherwise response to tears- just makes it more likely you end up crying even more🤷🏼♀️ . Just hand over a tissue as a silent acknowledgement that she is crying, and continue with conversation as if she isn’t crying. Ignore the nose blowing, and leaky eyes😳