Sales suddenly slow down

Hi, I recently hired a team to manage my account and I have a concern. My top-selling product had low stock (only 7 units available) and I haven’t seen any units being sold for a week (I used to sell 20 units per week). I don’t want to blame the team without knowing the reason, but I suspect they may have changed something. How can I find out what happened and check the keywords they inputted for this product?

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thanks for the help in advance