Code sample:
declare
record_hold_source               oe_holds_pvt.hold_source_rec_type;
 v_msg_data                VARCHAR2 (2000) := NULL;
 v_return_status           VARCHAR2 (30);
 v_msg_count               NUMBER := 0;
  i                                 NUMBER;
  v_num_msg_out            NUMBER;
     rec_hold_source.line_id :=  line_id;
      rec_hold_source.hold_entity_code := 'O';
      rec_hold_source.hold_entity_id := header_id;
      rec_hold_source.header_id := header_id;
      rec_hold_source.hold_comment := 'Testing';
      rec_hold_source.hold_id := ihold_id;
      -- standard who
      rec_hold_source.request_id := request_id;
      rec_hold_source.program_id := program_id;
      rec_hold_source.program_application_id := prog_appl_id;
      rec_hold_source.last_updated_by := user_id;
      rec_hold_source.last_update_date := sysdate;
      rec_hold_source.last_update_login := login_id;


Begin
oe_msg_pub.RESET; 
      oe_holds_pub.apply_holds (p_api_version       => 1.0,
                                p_commit            => fnd_api.g_false,
                                p_hold_source_rec   => record_hold_source,
                                x_msg_count         => v_msg_count,
                                x_msg_data          => v_msg_data,
                                x_return_status     => v_return_status);


      IF v_msg_count > 0
      THEN
         i := 1;

         WHILE i <= v_msg_count
         LOOP
            oe_msg_pub.get (p_msg_index       => i,
                            p_encoded         => fnd_api.g_false,
                            p_data            => v_msg_data,
                            p_msg_index_out   => v_num_msg_out);
            i := i + 1;
            fnd_file.put_line (fnd_file.LOG,
                               v_msg_data);
         END LOOP;
      END IF;

-------------------------
release hold
         fnd_msg_pub.RESET;
         -- calling API to release hold on the order line
         oe_holds_pub.release_holds (
            p_api_version        => 1.0,
            p_commit             => i_chr_action_commit,
            p_validation_level   => fnd_api.g_valid_level_full,
            -- Fnd_Api.G_VALID_LEVEL_NONE,
            p_hold_source_rec    => rec_hold_source,
            p_hold_release_rec   => rec_hold_release,
            x_return_status      => v_chr_hold_ret_status,
            x_msg_count          => v_num_hold_msg_cnt,
            x_msg_data           => v_chr_msg_data);


oe_order_pub.process_order
这个会check 权限。
      p_action_request_tbl     oe_order_pub.request_tbl_type;
      p_action_request_tbl(1).request_type := oe_globals.g_apply_hold;
      p_action_request_tbl(1).entity_code := oe_globals.g_entity_line;
      p_action_request_tbl(1).entity_id := v_line_id;
      p_action_request_tbl(1).param1 := v_hold_id;
      p_action_request_tbl(1).param2 := v_hold_entity_code;
      p_action_request_tbl(1).param3 := v_header_id;
      p_action_request_tbl(1).param4 := 'Hold Applied By EMR Bill Only VLVS Workflow';
      p_action_request_tbl(1).date_param1 := NULL;

      oe_order_pub.process_order(p_api_version_number     => 1.0,
                                 p_init_msg_list          => fnd_api.g_false,
                                 p_return_values          => fnd_api.g_false,
                                 p_action_commit          => fnd_api.g_false,
                                 x_return_status          => x_return_status,
                                 x_msg_count              => x_msg_count,
                                 x_msg_data               => x_msg_data,
                                 p_action_request_tbl     => p_action_request_tbl,  --only inputting this  record if we want to apply hold
                                 x_header_rec             => p_header_rec,
                                 x_header_val_rec         => p_header_val_rec,
                                 x_header_adj_tbl         => p_header_adj_tbl,
                                 x_header_adj_val_tbl     => p_header_adj_val_tbl,
                                 x_header_price_att_tbl   => p_header_price_att_tbl,
                                 x_header_adj_att_tbl     => p_header_adj_att_tbl,
                                 x_header_adj_assoc_tbl   => p_header_adj_assoc_tbl,
                                 x_header_scredit_tbl     => p_header_scredit_tbl,
                                 x_header_scredit_val_tbl => p_header_scredit_val_tbl,
                                 x_line_tbl               => p_line_tbl,
                                 x_line_val_tbl           => p_line_val_tbl,
                                 x_line_adj_tbl           => p_line_adj_tbl,
                                 x_line_adj_val_tbl       => p_line_adj_val_tbl,
                                 x_line_price_att_tbl     => p_line_price_att_tbl,
                                 x_line_adj_att_tbl       => p_line_adj_att_tbl,
                                 x_line_adj_assoc_tbl     => p_line_adj_assoc_tbl,
                                 x_line_scredit_tbl       => p_line_scredit_tbl,
                                 x_line_scredit_val_tbl   => p_line_scredit_val_tbl,
                                 x_lot_serial_tbl         => p_lot_serial_tbl,
                                 x_lot_serial_val_tbl     => p_lot_serial_val_tbl,
                                 x_action_request_tbl     => p_action_request_tbl);