How do I fix group messages on iPhone when using a Japan eSIM data plan?

Activated an eSIM in Japan, which is data only. In cellular, I turn off my home eSIM. When I do so, I can’t send messages to groups, even if they’re all iPhones. I get a pop up saying I need to turn on mms, but that setting isn’t there. Any ideas on how this can be fixed?


[Re-Titled by Moderator]

iPhone 14 Pro Max, iOS 18

Posted on Apr 26, 2025 5:30 PM

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Apr 27, 2025 2:18 PM in response to Fullio21

Fullio21 wrote:

Activated an eSIM in Japan, which is data only. In cellular, I turn off my home eSIM. When I do so, I can’t send messages to groups, even if they’re all iPhones. I get a pop up saying I need to turn on mms, but that setting isn’t there. Any ideas on how this can be fixed?

[Re-Titled by Moderator]

Turn your home esim back on try.

If that doesn't work, you'll need to contact your esim providers.

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How do I fix group messages on iPhone when using a Japan eSIM data plan?

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