Author: Wang, Jerry @ CRM development Team in SAP.
You can find Jerry: https://people.sap.com/jerry.wang
For the example of UI logical link and work center, please refer to the screenshot below:
And also an inbound plug is necessary:
Create a new entry for inbound plug definition. Choose the inbound plug declared in step1. Specify the name of Target ID, which will be used later.
3. use tcode CRMC_UI_NBLINKS, locate the navigation profile TPM-PRO and double click "Define Logical Links":
Create a new logical link id and bind it to the target id defined in step2.
And create a new work center:
5. In the runtime the new work center is visible now: