Failed to create a plan. Why do I receive this error? Thank you.
every Team have a default Planner already created, maybe you are trying to create a duplicated Planner so you get the error, try "Use an existing Planner from this Team" instead.
Does anyone else have the same issue in your organization?
In this case, we recommend you confirm if this problem occurs as well in Teams web client as well
Besides, it is also a good way to contact the admin in your organization to check the related settings about enabling Teams in telnant-wide level and make sure these accounts can use these app normally.
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