Mailbox custom field

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Posted on by Jerett Crumbley

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Is it possible to create a custom field on the Mailbox entity?

I was just advised by a Microsoft rep to create a few custom fields in the mailbox entity while their engineers resolve an issue. However, when trying to create the fields I realized that the "New" button isn't available in the mailbox entity. Is this a bug, limitation, or am I doing something wrong?

Categories:

Customization

Administration and Setup

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meelamri 13,198 User Group Leader on at

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RE: Mailbox custom field

Please don’t forget to verify my answer by clicking YES. It will close this thread, and help others to find the answer.
Jerett Crumbley 188 on at

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RE: Mailbox custom field

That's incredibly interesting and insightful. Thank you.
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meelamri 13,198 User Group Leader on at

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RE: Mailbox custom field

Hello,

I do not think it is possible to create a new custom field in the mailbox entity. The entity metadata gives us the possibility to know if we have the possibility to create a new custom field or not. For example, you can access the metadata of the mailbox entity by using the following query:

https://yourOrg.crm4.dynamics.com/api/data/v9.0/EntityDefinitions(LogicalName='mailbox')

Result: