Hi,@荒川 裕子
Thanks for posting your question in the Microsoft Q&A forum.
According to your description, you set to allow meeting conflicts, but it has no effect.
I checked the screenshot you provided and found a setting error.
Allow conflicts Settings:
This option determines the maximum number of conflicts that may occur while creating new repeated meeting requests. When set to 0, a recurring event will fail to book if there are already one or more conflicting appointments. If the number is larger than zero, a repeating event may have as many conflicts as it wants before being refused.
This setting determines the maximum percentage of meeting conflicts that are permitted for new repeated meeting requests. The same concept as with the individual conflicts field applies here, but a percentage of allowable conflicts is defined.
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