To remove a source, go to the Administration section and then to the Projects menu. Identify the project line containing the source to delete. In the Sources column, click the icon to list the current sources of the project. Note that the value on this icon is the number of sources currently configured for the project.
Click the red icon to delete the source, and click Validate to complete the operation.
Important note : When you delete a source, all actions previously generated on that source will be deleted. This could potentially retroactively affect the outcome of the action plans, and even the results in game rooms. To preserve this data without synchronizing the source again, you just need to disable the source inactive. To that purpose, just edit the source and uncheck the entry "enabled".