Need help in writing a fast formula to pick values from UDT

Summary

Pick "Workgroup" column details from the UDT. If the details are not found, traverse to the next level manager and pick the corresponding details.

Content

Steps:
1) Derive the manager person number from the employee record. (Completed)
2) Match this manager employee number to UDT column and pick corresponding value. (Need pointers)
3) If the value is not available for the immediate manager, traverse up the hierarchy and pick the corresponding value. (Need pointers)

Formula for the 1st step is as follows -

/*=========== DATABASE ITEM DEFAULTS BEGIN ==============*/
DEFAULT FOR L_MGR_NUMBER IS ' '
DEFAULT FOR PER_ASG_PERSON_NUMBER IS ' '