BAPI_PROJECT_MAINTAIN not update on S4HANA

[former_member532829]

I am currently using the BAPI_PROJECT_MAINTAIN method to update a PEP element of my project structure in SAP HANA. When executing the function, it neither updates nor returns errors, it doesn't work.

I want to update the checkboxes wbs_planning_element, wbs_planning_element, and wbs_account_assignment_element.

  DATA:
  ls_project_definition       TYPE bapi_project_definition,
  ls_project_definition_upd   TYPE bapi_project_definition_up,
  ls_method_project           TYPE bapi_method_project,
  ls_wbs_element_table_update TYPE bapi_wbs_element_update,
  ls_wbs_element_table        TYPE bapi_wbs_element,
  ls_return                   TYPE bapireturn1,
  lt_method_project           TYPE TABLE OF bapi_method_project,
  lt_wbs_element_table_update TYPE TABLE OF bapi_wbs_element_update,
  lt_wbs_element_table        TYPE TABLE OF bapi_wbs_element,
  lt_message_table            TYPE TABLE OF bapi_meth_message.

  ls_project_definition-project_definition                   = 'O/SAP/001'.
  ls_project_definition-description                          = 'TEXT'.
  ls_project_definition_upd-project_definition               = 'X'.

  ls_method_project-objecttype                               = 'WBS-ELEMENT'.
  ls_method_project-method                                   = 'UPDATE'.
  ls_method_project-objectkey                                = 'O/SAP/001'.
  ls_method_project-refnumber                                = '000001'.
  APPEND ls_method_project
  TO lt_method_project.

  ls_wbs_element_table_update-wbs_element                    = 'I'.
  ls_wbs_element_table_update-wbs_planning_element           = 'X'.
  ls_wbs_element_table_update-wbs_planning_element           = 'X'.
  ls_wbs_element_table_update-wbs_account_assignment_element = 'X'.
  APPEND ls_wbs_element_table_update
  TO lt_wbs_element_table_update.

  ls_wbs_element_table-wbs_element                            = 'O/SAP/001.01.002'.
  ls_wbs_element_table-project_definition                     = 'O/SAP/001'.
  ls_wbs_element_table-wbs_planning_element                   = 'X'.
  ls_wbs_element_table-wbs_account_assignment_element         = 'X'.
  APPEND ls_wbs_element_table
  TO lt_wbs_element_table.

  CALL FUNCTION 'BAPI_PROJECT_MAINTAIN'
    EXPORTING
      i_project_definition       = ls_project_definition
      i_project_definition_upd   = ls_project_definition_upd
    IMPORTING
      return                     = ls_return
    TABLES
      i_method_project           = lt_method_project
      i_wbs_element_table_update = lt_wbs_element_table_update
      i_wbs_element_table        = lt_wbs_element_table
      e_message_table            = lt_message_table.

  APPEND ls_return TO return.
ENDFUNCTION.

[raymond_giuseppi]

You didn't post the call of BAPI_TRANSACTION_COMMIT, did you call it when no error in RETURN?