value not getting maintained even after maintain in some situations

hi experts,

we work on service contracts.

when a line item is entered, a value( iv_eos_i.) is set Yes/No depending on  some custom logic in the line item level

this value is then maintained in the crmd_customer_i table using crm_customer_i_maintain_ow

but to my surprise, sometimes this value is blank even after maintain. This is not replicable while debugging

i tried commit work and wait , but client does not want this approach

Please suggest alternatives

Please anything...

please find the code

DATA: lt_input_fields          TYPE  crmt_input_field_names_tab,
         ls_customer_i            TYPE  crmt_customer_i_com,
         ls_input_fields          TYPE  crmt_input_field_names.
*--Fill in CUSTOMER_I
   ls_customer_i-ref_guid           =  is_orderadm_i-guid.
   ls_customer_i-zzew_lg_eos_date   =  iv_eos_date.
   ls_customer_i-zzew_lg_eos_i      =  iv_eos_i.
   ls_customer_i-mode               =  gc_create.
*--Fill in Input Fields
   ls_input_fields-fieldname    =  gc_eos_i.
*  ls_input_fields-changeable   =  gc_x.
   INSERT ls_input_fields INTOTABLE lt_input_fields.
   CLEAR ls_input_fields.
   ls_input_fields-fieldname  =  gc_eos_date.
   INSERT ls_input_fields INTOTABLE lt_input_fields.
   CLEAR ls_input_fields.

   CALLFUNCTION'CRM_CUSTOMER_I_MAINTAIN_OW'
     EXPORTING
       is_customer_i_com          = ls_customer_i
*   IV_EXTERNAL_CALL           = gc_x
     CHANGING
       ct_input_field_names       = lt_input_fields
  EXCEPTIONS
    item_change_error          = 1
    item_create_error          = 2
    error_occurred             = 3
    OTHERS                     = 4
             .
   IF sy-subrc <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
   ENDIF.

Thanks,

Sangeetha