Implement the GET_ENTITY method for the BusinessPartner entity.

1. From the Class Interface screen, scroll down to the BUSINESSPARTNER_GET_ENTITY method, place the cursor in the row, and click Redefine.
2. Implement the method using this code:

   method BUSINESSPARTNERS_GET_ENTITY.
   DATA: lt_keys TYPE /IWBEP/T_MGW_TECH_PAIRS,
   ls_key TYPE /IWBEP/S_MGW_TECH_PAIR,
   ls_bp_id type BAPI_EPM_BP_ID,
   lv_bp_id(10) type N.
   lt_keys = IO_TECH_REQUEST_CONTEXT->GET_KEYS( ).
   READ TABLE lt_keys with key name = 'BP_ID' INTO ls_key.
   lv_bp_id = ls_key-value.
   ls_bp_id-bp_id = lv_bp_id.
   CALL FUNCTION 'BAPI_EPM_BP_GET_DETAIL'
   EXPORTING
   BP_ID = ls_bp_id
   IMPORTING
   HEADERDATA = er_entity
   * TABLES
   * CONTACTDATA =
   * RETURN = lt_return
   .
   endmethod.

   The BAPI function BAPI_EPM_BP_GET_DETAIL returns the business partner header information by passing in the BP_ID key.

3. Click the Activate icon.
   
   
   
   
4. If you see any warnings, recheck the code, correct any mistakes, then click Activate again.
5. Click Back to return to the Class Interface screen.