Configure Changeable IDs

To enable this feature, set the application parameter MDGF_ENABLE_KEY_SWITCH to X in the Web Dynpro application configuration. SAP delivers these for each entity with SU type 1 that has its own user interface. It is possible to enable the feature for a single entity only.

Create a custom Web Dynpro application configuration as a copy of a predefined SAP configuration.
1. Start the Web Dynpro application CONFIGURE_APPLICATION.
2. Define an existing Web Dynpro application configuration with component name MDGF_OVP_GEN and its configuration ID (for example, MDGF_0G_OVP_CCTR).
3. Choose Copy. Follow the instructions of the copy window to create your custom Web Dynpro application configuration.
4. Once the copy is finished, choose the Continue in Change Mode button to apply the application parameter value.
5. Locate parameter MDGF_ENABLE_KEY_SWITCH in the list of application parameters and set its value to X.
6. Save your entries.
Create a custom MDG Communicator configuration.
1. Start the Web Dynpro application CONFIGURE_COMPONENT.
2. Define an existing MDG Communicator configuration with component name MDG_BS_GOV_COMMUNICATOR and its configuration ID (for example, MDGF_0G_OVP_CCTR).
3. Choose the Copy button. Follow the instructions of the copy window to create your custom Web Dynpro component configuration for the MDG Communicator.

Adjust MDG Customizing.

MDG consists of several customizing tables that are used for the navigation to user interfaces. You need to add the newly created Web Dynpro application to the tables to ensure that the new user interface that supports changeable IDs is used instead of the SAP pre-defined user interface. Carry out the steps described below. The steps take the Cost Center as an example.

Start transaction MDGIMG.
Open General Settings Process Modeling Business Activities .

Open the Customizing activity Link Log. Actions with UI Application and Bus. Activity: Custom Definition .

Take a look at the SAP default configuration for cost centers in the Customizing activity Link Log. Actions with UI Application and Bus. Act.: Standard Definition, which should contain records similar to the ones shown in the table below:

BO Type	Log. Action	Current UI App.	Current UI Config.	Target UI App.	Target UI Config.	Business Activity
158	CREATE	*	*	MDGF_OVP_GEN	MDGF_0G_OVP_CCTR	CCT1
158	DISPLAY	*	*	MDGF_OVP_GEN	MDGF_0G_OVP_CCTR	CCT3

Copy or note the lines that relate to the creation and display of cost centers using the SAP UI configuration MDGF_0G_OVP_CCTR.

Navigate to the custom definition and add new entries using the previously copied or noted values as a template. Define your new target UI configuration.

BO Type	Log. Action	Current UI App.	Current UI Config.	Target UI App.	Target UI Config.	Business Activity
158	CREATE	*	*	MDGF_OVP_GEN	ZMDGF_0G_OVP_CCTR	CCT1
158	DISPLAY	*	*	MDGF_OVP_GEN	ZMDGF_0G_OVP_CCTR	CCT3

Save your changes.

Open the Customizing activity Link Logical Actions with Business Activity: Custom Definition.
1. Take a look at the SAP default configuration for cost centers in the Customizing activity Link Logical Actions with Business Activity: Standard Definition, which should contain records similar to the ones shown in the table below:
  
  UI Application
  
  UI Configuration
  
  Log. Action
  
  Business Activity
  
  MDGF_OVP_GEN
  
  MDGF_0G_OVP_CCTR
  
  CREATE
  
  CCT1
  
  MDGF_OVP_GEN
  
  MDGF_0G_OVP_CCTR
  
  DISPLAY
  
  CCT3
2. Copy or note the lines that relate to the creation and display of cost centers using the SAP UI configuration MDGF_0G_OVP_CCTR.
3. Navigate to the custom definition and add new entries using the previously copied values as a template:
  
  UI Application
  
  UI Configuration
  
  Log. Action
  
  Business Activity
  
  MDGF_OVP_GEN
  
  ZMDGF_0G_OVP_CCTR
  
  CREATE
  
  CCT1
  
  MDGF_OVP_GEN
  
  ZMDGF_0G_OVP_CCTR
  
  DISPLAY
  
  CCT3
4. Save your changes.