create_column mutation accepts a ColumnType argument with one of the options being
integration. What is the purpose of this type?
I believe these column are used to facilitate integration Apps.
If you check the Zendesk integration (you can easily create a trial Zendesk account) and add this
on one board, it should add an integration column.
In this specific case the integration column seems to stock the Zendesk ticket number.
Its value can not be edited by anyone but the integration, which is nice.
monday.com is gradually providing us with the tools to do this kind of complex integrations, which is nice.
Shout out to monday.com staff if you think you need this for your App, this might be available for beta use as it is kind of documented in api