It is not possible to delete integration scenarios in Integration Hub, but they may be archived.
To archive an unnecessary integration scenario, perform the following:
Please note: The same actions should be performed for each direction of the unnecessary integration scenario (e.g.: Project Online > Planner and Planner > Project Online).
1. Navigate to Integration page -> Scenarios tab and click on Edit button selecting it from the drop-down menu near the scenario that you would like to archive.
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2. On the page that will be opened select the “Advanced Edit” option.
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3. Scroll down the page that will be opened and check the “Disabled (Archived)” checkbox.
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4. Click Save and the integration scenario will be archived.
Please note: If you configured a two-way integration scenario, the steps listed above should be performed twice, for each synchronization direction.