Getting error while adding a custom field (with input help) through AET

Question

Hi All,
I need to add two custom field under Service orders at Item level in component BT140I_SRVP.
One field is required to have the input search help f4 and autopopulates the second field
I am able to add one field(not requiring help) successfully through AET .
I have created one Zsearch_help in se11 and its successfully running while I am testing it
While adding fsecond field through AET,I need to enter following details as -
field label,search relevant ,serach help etc.
When I type the name of my 'Zsearch_help' against field search help it gives me following error
'Search help is not compatible'.
Please help me out.Kindly be detailed as I am new to SAP CRM.

Answer 1

Thanks for very helpful reply. After implementing the suggested SAP note, I am able to see the getter and setter methods.
So one of my problem has got solved with your kind help:)
As per your another suggestion,I have created the enhanced fields without the search help from AET in the node BTAdminI with names Plant(ZZPLANT) and Storage Location(ZZStoarge_Loc).
Now I am facing below problem:
Since Plant needs to autopopulated by Storage Location (search Help ZOFI_SHLP_STORAGE_LOC),So I need to Implement Getter setter method.
I have written below code into Get_V_ZZStorage_Loc Method:
method GET_V_ZZSTORAGE_LOC.
  DATA:
    ls_map    TYPE if_bsp_wd_valuehelp_f4descr=>gtype_param_mapping,
    lt_inmap  TYPE if_bsp_wd_valuehelp_f4descr=>gtype_param_mapping_tab,
    lt_outmap TYPE if_bsp_wd_valuehelp_f4descr=>gtype_param_mapping_tab.
    ls_map-context_attr = 'ZZSTORAGE_LOC'.
    ls_map-f4_attr      = 'STORAGE_LOC'. (Storage_loc is the parameter defined in search help)
    APPEND ls_map TO: lt_inmap, lt_outmap.
  CREATE OBJECT rv_valuehelp_descriptor TYPE cl_bsp_wd_valuehelp_f4descr
    EXPORTING
      iv_help_id        = 'ZOFI_SHLP_STORAGE_LOC1'
      iv_help_id_kind   = if_bsp_wd_valuehelp_f4descr=>help_id_kind_callback
      iv_input_mapping  = lt_inmap
      iv_output_mapping = lt_outmap.
endmethod.
But its not working.Should I write some code in Get_P_XX or some other method also?
Kindly suggest .