UWL Connectors
The UWL interacts with (task) item providers through specific connector. The connectors perform basic mapping of attribute values and determine the work item type and execution method. Connectors also help in connection to object and attachment repositories to retrieve additional custom attributes or attachments.
The UWL comes with standard provider connectors and it is possible to configure their detailed behavior based on work item types.
The connectors that are configured by default with UWL are:
● AdHocWorkflowConnector
● ActionInboxConnector
Both connectors are configured by default, so both Collaboration Tasks and KM Recent Notifications show up in the UWL by default. Removing the connectors will remove the corresponding items from the UWL.
The following are the examples of UWL used (by default or configured) connectors:

This connector relates to Collaboration Task.
The AdHocWorkflowConnector connects Java Workflow and provides Collaboration Tasks into the UWL. Collaboration Tasks are created in the UWL using New Task, or within Collaboration in the My Tasks or Room Tasks lists.
By default the AdHocWorkflow connector is enabled. If it is not, then make sure that while linking connectors to the system names, the system alias AdHocSystem must map to AdHocWorkflowConnector.

You must enter the correct system alias to the corresponding connector. Errors occur if any other system (other than AdHocSystem) is mapped to this connector.

This connector relates to the Notifications received by UWL from Knowledge Management (KM).
The ActionInboxConnector provides KM Recent Notifications into the UWL Notification tab, which include document feedback, subscription items, subscription administration, and document approval notifications; in addition, checked out documents appear under Tracking, and documents for approval under Tasks.
By default the Action Inbox Connector for UWL is enabled.
For more
information, see
Action Inbox
section in the KM Administration Guide.

This connector relates to the Notifications received by UWL from a remote KM system. Therefore, we recommend that you use this connector only in a federated portal network (FPN).
The WsActionInboxConnector of the consumer system connects to the ActionInboxConnector of the provider system and provides KM Recent Notifications in the UWL Notification tab, checked-out documents under Tracking, and documents for approval under Tasks . The notifications, tracking and tasks are taken from the provider system.
The WsActionInboxConnector is not enabled by default and needs a specific configuration.
For the connector to function properly, you have to use the fully qualified domain name in the URL when logging on to the portal.
More information: Configuring the WsActionInboxConnector

This connector relates to Alerts.
For systems with this connector, you must define a new system. There is a centralized unique system in most SAP landscapes, which generates and provides Alerts. Register its item types with the UWL service through the Universal Worklist Administration ® Universal Worklist Systems.
For more
information, see
Alert Management
documentation .
UWL implements a connector GenericAbapConnector that connects to the SAP system and invokes a pre-configured ABAP class.
The provider in ABAP should implement the interface IF_UWL_ITEM_PROVIDER.

Bypassing a workflow engine and directly creating tasks for the users is not ideally suited for items that need to be tracked, or which need workflow services like forward, substitution, and attachments. It is strongly recommended to use either Business Workflow or Collaboration Task for dealing with workflow process. Usage of GenericAbapConnector should be the last option for the application under exceptional circumstances.

This connector relates to SAP Business Workflow. You need to configure this connector in order to use the Real Time Refresh mechanism. For more information, see Enabling Real Time Refresh.
For systems with this connector, you must define a new system and register its item types with the UWL service through the Universal Worklist Administration ®Universal Worklist Systems.

This connector relates to Guided Procedures. Select this connector type if you use the built-in GP processing engine.
For systems with this connector, you must define a new system and register its item types with the UWL service through the Universal Worklist Administration ®Universal Worklist Systems.

If you use the Business Process Management (BPM) runtime as the processing engine for Guided Procedures, select the WebFlowConnector type.

This connector relates to mails that are sent to you using Business Workplace. The connector is also called SONIC adapter.
With this connector, mails that are sent from Business Workplace are displayed in a separate tab in the UWL, the SAP Office Mail tab. The users can display, forward and delete these mails in the UWL and can display the mails’ attachments.