Customer Enhancement Tabs to be made mandatory

Question

Hello
I have WBS Customet enhancement tab wherein I want to make them madatory, and system should give error while saving.
Can anyone help me?
Deepak M Pitale

Answer 1

Also, If you want to go with user-exit option then check the following exits:
1. CNEX0009 -- EXIT_SAPLCOMK_001
      Use this exit while processing materials from the network orders.
2. CNEX0011 -- EXIT_SAPLCOMK_002
      With this user exit, you can modify the quantity of the BOM items which are exploded at the BOM explosion
in the network screens.
      This exit will export STPOX_TAB table which is the structure of the BOM items.
3. CNEX0014 -- EXIT_SAPLCN10_001
      The user exit can be activated when you want to transfer BOM items from external systems.
      If the exit is active then the indicator for the takeover of external data in the initial screen of the interface like
CN33 should be set active.
      In return, a table with the extended structure of the BOM items (STPOX) is expected.
4. CNEX0015 -- EXIT_SAPLCN10_002
      This exit can be used to change BOM data for BOM transfer.
      If this user exit is called, then a function module is called after the BOM explosion. This function module
receives a structure with fields from the initial screen (RCNIP01) as well as the table of selected Bill of
materials items (STPOX).
      The changed table can be returned to the calling program for further processing.
5. CNEX0026 -- EXIT_SAPLCOMK_005
      This user exit is used to check if there are any changes done to the material component in the component
overview screen or the details screen of the material component.
      Please note that this user exit is called only during the change in component overview screen or
component detail screen.  In other words this exit cannot be called if for an example the network order header
changes which involved in the material component change during release or scheduling etc.,
6. CNEX0034 -- EXIT_SAPLCN10_003
      This user exit is used to check if a new assignment is allowed for the network activity during BOM transfer
to PS (CN33).
7. CNEX0035 -- EXIT_SAPLCN10_004
      This user exit is used to check if a change to an existing assignment is allowed for the network activity
during BOM transfer to PS (CN33).
8. CNEX0036 -- EXIT_SAPLCN10_005
      This user exit is used to check if any existing assignment can be deleted during BOM transfer to PS
(CN33).
9. CNEX0037 -- EXIT_SAPLCOMK_011
      This user exit can be called during creation of new material component to the network activity.
10. CNEX0038 -- EXIT_SAPLCOMK_012
      This user exit can be called during change of material component.
11. CNEX0038 -- EXIT_SAPLCOMK_013
      This user exit can be called during deletion of material component.
12. CNEX0040 -- Source determination of the network
      This user exit is used to activate the source determination of the network.
13. CNEX0041 -- EXIT_SAPLCOZF_004
               -- EXIT_SAPLCOZF_005
      This exit is used to influence the date of price simulation when you specify a Purchasing Info Record for an
activity/element or for a component.
14. CNEX0042 -- EXIT_SAPLCN10_006
      This user exit is used to control the generation of preliminary requirements for the top level BOM item
during multi-level BOM explosion.
Regards
Saurabh