Thanks for your response. I will try tweaking a config profile that I currently have for our iPhones. We currently have allowESIMModification enabled in the config profile, however we tweaked it with allowESIMModification being disabled and had the same issue. This was with allowCellularPlanModification also being disabled.
some-guy
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Was curious if anyone else could reproduce the issue. As mentioned in the initial post, a colleague was able to reproduce the issue using their 2021 Macbook Pro with the M1 Max chip and an iPhone 15.