Hierchies and hierchies node with customer exit?

Question

hi friends,
what scenerio we use hierchies and hierchies node  variable with customer exit ?
Thanking u
suneel.

Answer 1

Hierarchy variables represent hierarchies. You can use them wherever
hierarchies can be selected.
Hierarchy node variables represent a node in a hierarchy. You can use them as
an alternative to hierarchy nodes as fixed values for restricting a characteristic.
If you use a hierarchy node variable, you can make selections by hierarchy
node when you use the query.
The Customer Exit processing type for variables enables you to determine
values for variables by means of a function module exit. The function
module used is EXIT_SAPLRRS0_001.
You create a project in transaction CMOD by selecting the SAP
enhancement RSR00001 and assigning this to the enhancement project.
Activate the project.
WHEN 'HIERARCHY'.   " Hierarchy variable
         CLEAR L_S_RANGE.
         L_S_RANGE-LOW  = 'MY HIERARCHY'. " hierarchy name
         L_S_RANGE-SIGN = 'I'.
         L_S_RANGE-OPT  = 'EQ'.
         APPEND L_S_RANGE TO E_T_RANGE.
-> Only dependents of hierarchy 'MY HIERARCHY'
      WHEN 'HNODE'.   " Hierarchy node variable
         CLEAR L_S_RANGE.
         L_S_RANGE-LOW  = 'DEPT1'.  " Node name
         L_S_RANGE-HIGH = '0HIER_NODE'.   " InfoObject
         L_S_RANGE-SIGN = 'I'.
         L_S_RANGE-OPT  = 'EQ'.
         APPEND L_S_RANGE TO E_T_RANGE.
-> Node 'DEPT1', that cannot be posted to
      WHEN 'HNODEVAL'.   " Hierarchy node variable
         CLEAR L_S_RANGE.
         L_S_RANGE-LOW  = 'LEAVE1'.  " node name (node is a leaf)
         L_S_RANGE-SIGN = 'I'.
         L_S_RANGE-OPT  = 'EQ'.
         APPEND L_S_RANGE TO E_T_RANGE.
-> Node 'LEAVE1' (leaf)
Regards
Naga