Object Subscription Logical Units

This window shows the subscription information for all logical units.

Fields

• Logical Unit - Name of the logical unit
• Change Tracking Running - Indicates if one or more subscriptions are there for the logical unit
• Change Tracking Disabled - Indicates if the ability to subscribe to business objects in the logical unit is disabled by the administrator

Update Trigger Status and Delete Trigger Status can have the following meanings

• Empty - No triggers are generated for object subscription functionality
• ENABLED - Triggers are up and running
• DISABLED - Trigger have been disabled. This happens when the administrator disables tracking via the RMB option, when there are no more subscriptions for the Logical Unit or by other unexpected reason. If the triggers are disabled when Change Tracking is Running, something has gone wrong with the trigger in the database and you should Regenerate Triggers via the RMB option
• INVALID - The triggers are invalid due to errors in the trigger definition, most probably due to a change in a database column. Use Regenerate Trigger RMB option to regenerate the triggers

Operations

• View Subscriptions -  Shows all subscriptions related to the logical unit
• Enable Tracking - Enables Object Tracking framework (e.g. Subscriptions) for the logical unit. (By default a logical unit is Object Tracking enabled).
• Disable Tracking - Disables Object Tracking framework (e.g. Subscriptions) for the logical unit. This will remove the underlying triggers for the logical unit if they are already created. Users who have subscribed to any object in the logical unit will not get updates when objects are modified (i.e. will not get stream notifications). But existing subscriptions will remain until expiration. It will not be possible to add new subscriptions to the logical unit.
• Regenerate Triggers - Useful when triggers become invalid when the structure of the logical unit table changes.

Troubleshooting

See Troubleshooting page for more information