How to find enhancement point or enhancement section

Hi,
                    If anybody is trying to make changes to the approved sale order it shows a message
                    "SALE ORDER APPROVED BY xx CHANGES NOT POSSIBLE".
                    i want to know where excatly the enhacement code is written.
Thanks & Regards,
vijay karri.
Edited by: vijaykarri on Jul 8, 2010 11:39 AM

Hi ,
Please find in the Source code using Search Option with the Message String Or Using the Message No and Whereused List .
Regards,
Kishore.S

Similar Messages

Re: Enhancement-point VS Enhancment-Section

HI All,
Could you please let me know the use of Enhancement-Point and Enhancement-Section.
Thanx in Advance.
Regards
ambi

Hi Ambika,
Please check this link
http://help.sap.com/saphelp_nw70/helpdata/en/91/f1e540f8648431e10000000a1550b0/content.htm
http://help.sap.com/saphelp_nw70/helpdata/en/81/9a3942ec4ae22ce10000000a1550b0/content.htm
The ABAP statements ENHANCEMENT-POINT and ENHANCEMENT-SECTION identify positions where code can be inserted or replaced. The enhancement implementations are regular repository objects and are assigned to a development package in the customeru2019s namespace when they are created.
The enhancement spots are used to manage explicit enhancement options. Enhancement spots carry information about the positions at which enhancement options were created. One enhancement spot can manage several enhancement options of a Repository object. Conversely, several enhancement spots can be assigned to one enhancement option.
Best regards,
raam

How to find a point lies inside circle

Hi,
How do I find a point (x,y) is lies inside a circle? I trying to do a small shooting game.
If the user clicks inside the circle they get a point. I am using the Pythagoras theorem to achieve this. But I can't.
Please advice me.
Here is my code
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Shoot extends JFrame implements MouseListener, MouseMotionListener
    private int winWidth = 300;
    private int winHeight = 300;
    private MyCanvas canvas = null;
    private int ballX = 50;
    private int ballY = 50;
    private int ballW = 50;
    private int ballH = 50;
    private int ballR = ballW / 2;
    private int curX = 0;
    private int curY = 0;
    private int left = 0;
    private int top = 0;
    public Shoot()
        Cursor c = new Cursor(Cursor.CROSSHAIR_CURSOR);
        this.setCursor(c);
        canvas = new MyCanvas();
        packIt();
        left = getInsets().left;
        top = getInsets().top;
    private void packIt()
        setTitle("My first game!");
        setPreferredSize(new Dimension(winWidth, winHeight));
        setSize(new Dimension(winWidth, winHeight));
        setContentPane(canvas);
        addMouseListener(this);
        addMouseMotionListener(this);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        //setUndecorated(true);
        setLocation(300, 0);
        setVisible(true);
    public void mouseClicked(MouseEvent e)
        int x = e.getX() - left - ballX;
        int y = e.getY() - top - ballY;
        int r = ballR;
        System.out.println("x :" + x + "\ty :" + y);
        //Trying to implememt Pythagoras theorem. But I am missing something.
        System.out.println(((x * x) + (y * y)) + "\t=\t" + (r * r));
        System.out.println();
    public void mousePressed(MouseEvent e)
    public void mouseReleased(MouseEvent e)
    public void mouseEntered(MouseEvent e)
    public void mouseExited(MouseEvent e)
    public void mouseDragged(MouseEvent e)
    public void mouseMoved(MouseEvent e)
        curX = e.getX() - left;
        curY = e.getY() - top;
        canvas.repaint();
    private class MyCanvas extends JPanel
        public MyCanvas()
            setBackground(Color.BLACK);
            setBorder(BorderFactory.createLineBorder(Color.yellow));
        public void paintComponent(Graphics g)
            super.paintComponent(g);
            g.setColor(Color.WHITE);
            g.drawString("x :" + curX, 10, 20);
            g.drawString("y :" + curY, 10, 30);
            g.setColor(Color.RED);
            g.fillOval(ballX, ballY, ballW, ballH);
    public static void main(String[] asd)
        new Shoot();
}

public boolean isPointInCircle(){
    double x= circle.getWidth/2.0+circle.getX();
    double y= circle.getHeight/2.0+circle.getY();
    double distance=getDistance(x,y,pointX,PointY);
    return (distance<= circle.getWidth/2.0); //if the distance from the point to the center of the circle is less than the radius of the circle return true
double getDistance(double x1, double y1, double x2, double y2){
    return math.sqrt((x1-x2)(x1-x2) + (y1-y2)(y1-y2));
}Edited by: ghostbust555 on Jan 23, 2011 3:20 PM

How to find inflection point in graph when dx is very small

Hello,
I'm trying to sort through position data from a feedback pot to calculate linearity of movement as part of a testing procedure. An image of the data is attached. I want to delete all data in the 'flat' part, in order to do a linear fit and R^2 of the sloped line.
This is made trickier by the fact that the number of samples, the start and end points, and slope of the line can all vary considerably. Therefore I need some way to find the 'knee' in the graph and remove all subsequent samples from the data.
The most obvious method I tried was to use a derivative to find the inflection point, but since I have so many data points, the dx is very small
(~0.05) when using the built-in labview derivatives. This means that I can't distinguish the inflection point from any other change in the values due to noise or change in velocity. I made my own derivative function, which was a newton quotient that looked at (xi+N)-(xi-N) instead of (xi+1) - (xi-1), but this still did not give good results. My next idea is to just look at the difference of every N points, and arbitrarily decide a threshold to indicate when it has levelled off. Any other ideas would be really helpful though.
Thanks,
-SK-
Attachments:
position.PNG ‏17 KB

Lets see if I can answer without having to write a book.
Fisrt I'd run the data through a zero-phase shift low pass filter. Then look at the 2nd derivative to find the knee. Using a zero-pahse shift fileter I was able to detect when a value was jumping up when it started to jump rather than after. THis thread may be interesting.
Ben
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction

How to find nearest point on polyline

Hi,
I have to find the nearest point to my standing point on a polyline. I have Oracle Locator installed, but my data is not in a locator format. Is it possible to do this by using Locator's functionality by for example puting the polyline and standing point coordinate values into a spatial type variable and calling some locator functionality?
Or I have to coordinate data into a "spatial enabled" table, create spatial index etc and then call some Locator procedure.
Tamas

Luc,
Thanks for the reference.
When the data is converted, finding the nearest vertex in an sdo_geometry object could be done this way (of, of course, many):
select f.vertex_id,f.dist,f.min_dist,f.a_vertex
from (select p.vertex_id,
               sdo_geom.sdo_distance(p.the_point,p.a_vertex,0.005) as dist,
               min(sdo_geom.sdo_distance(p.the_point,p.a_vertex,0.005)) over (order by sdo_geom.sdo_distance(p.the_point,p.a_vertex,0.005) asc) as min_dist,
               p.the_point,
               p.a_vertex
          from (select t.id as vertex_id,
                       mdsys.sdo_geometry(2001,NULL,mdsys.sdo_point_type(358615,5407047,null),null,null) as the_point,
                       mdsys.sdo_geometry(2001,NULL,mdsys.sdo_point_type(t.x,t.y,t.z),null,null) as a_vertex
                  from table(sdo_util.getVertices(
                            MDSYS.SDO_GEOMETRY(2002,null,null,MDSYS.SDO_ELEM_INFO_ARRAY(1,2,1),MDSYS.SDO_ORDINATE_ARRAY(362253.9,5409676.63,355608.12,5407615.16,358063.37,5407673.48,355276.53,5407361.08,360471.08,5408880.79,362483.4,5406024.69,362359.16,5408840.11,354570.21,5406219.18,360204.62,5405849.14,359214.51,5408283.5,358761.06,5406683.88,356739.05,5405590.46,358615.79,5407047.29,355978.02,5407326.33,356240.87,5409898.7,363159.35,5405510.46,358588.81,5406536.54,354822.42,5408643.75,357690.2,5408872.57,359839.29,5407253.86,355236.29,5409711.53,355342.54,5407448.87,360290.53,5405111.51,354677.02,5407916.83,361651.27,5409178.26,361730.18,5407553.5,357402.33,5409065.5,361546.51,5407278.41,361915.65,5408942.57,361974.74,5405464.91,357794.3,5406979.33,356106.58,5405481.32,357604.96,5407407.72,360718.31,5406765.8,359745.49,5406568.16,363005.29,5407557.46,355844.01,5407095.47,362749.66,5405041.82,359714.13,5408898.69,354509.69,5406113.6,360041.59,5406204.24,360380.17,5408751.21,356621.4,5409603.06,355156.27,5405401.98,354441.35,5409090.68,356376.45,5407472.81,363877.1,5405582.72,361883.83,5409696.17,356363.41,5406434.53,362078.96,5406617.37,362714.59,5409800.2,362703.49,5408513.33,358317.64,5408170.64,359294.27,5409197.53,360240.93,5406333.84))
                            )) t
                ) p
        ) f
where f.dist = f.min_dist;Hope this helps.
Simon

How to find intersection point between a lineseries and a vertical line.

I have a lineseries chart (refer the screenshot). As I move the spend slider shown in the attachment, a vertical line is drawn in the chart. (I did this using the cartesian canvas as annotation element - using canvas.moveTo(), canvas.lineTo() functions)
I want to find out the intersection point(y value) where the vertical line meets the lineseries. Can someone help me on this. It will be really helpful.
Thanks,
Jayakrishnan

Here are a few functions I wrote years ago for common chart transformations... the function you're going to focus on for your solution is chartToScreen...
* Converts the screen position to chart value position
* @param thePos - Number - The position you want to convert
* @private
        private function getChartCoordinates(thePos:Point):Object
               var tmpArray:Array = dataTransform.invertTransform(thePos.x, thePos.y);
               return {x:tmpArray[0], y:tmpArray[1]};
* Takes a non-numeric chart value and returns a proper numeric value
* @param inValue - String - The display name of the instance showing on the axis (eg. if we're showing months, it might be 'Sep - 06'
* @param theAxis - IAxis - The axis on which we're looking
          public function getNumericChartValue(inValue:String, theAxis:IAxis):Object
               var axisCache:Array = new Array({inValue: inValue})
               if(!(theAxis is LinearAxis))
                    theAxis.mapCache(axisCache, "inValue", "outValue", true);
                    return {numericValue: axisCache[0].outValue}
               else
                    return {numericValue: Number(inValue)};
* Converts the chart values into screen coordinate values
* @param chartX - Number - The display name of the instance showing on the axis (eg. if we're showing months, it might be 'Sep - 06'
* @param chartY - Number - The axis on which we're looking
          public function chartToScreen(chartX:Number, chartY:Number, theSeries:Series):Point
               var tmpCache:Array = new Array({chartX:chartX, chartY:chartY});
               if(theSeries)
                    theSeries.dataTransform.transformCache(tmpCache, "chartX", "screenX", "chartY", "screenY");
               else
                    dataTransform.transformCache(tmpCache, "chartX", "screenX", "chartY", "screenY");
               return new Point(Math.round(tmpCache[0].screenX), Math.round(tmpCache[0].screenY));
* takes a point in mouse position, and runs it through converting to chart coordinates, converts chart coordinate to numeric value if needed
* and then back into mouse position to get the nearest axis snap point
* @param thePoint - Point - The position we're converting
* @private
          private function getSnapPosition(thePoint:Point):Point
               var chartPoint:Object = getChartCoordinates(new Point(thePoint.x, thePoint.y));
               //if either of the axis chart results is not in numeric format, we get the numeric equivalent of it
               var chartX:* = chartPoint.x;
               var chartY:* = chartPoint.y;
               chartX = getNumericChartValue(chartPoint.x, CartesianChart(this.chart).horizontalAxis).numericValue;
               chartY = getNumericChartValue(chartPoint.y, CartesianChart(this.chart).verticalAxis).numericValue;
               return chartToScreen(chartX, chartY, null);

How to find the points that define an edge?

I'm looking at a very large geometry that's generating an error from VALIDATE_GEOMETRY_WITH_CONTEXT:
ORA-13349: polygon boundary crosses itself 13349 [Element <5>] [Ring <1>][Edge <7566>][Edge <7591>]
How can I find the X & Y coordinates of those two edges?
It's a two-dimensional polygon, with thirty two inner rings, and extracting ring 5 doesn't show any obvious errors: It doesn't have seven thousand edges to it either though - is that supposed to be the edge number counting from the start of the outer ring, or just the start of that element?
Cheers
Simon Anderson
Scisys

Hi,
What I'm looking for is a way to report the error back to the end-user. The information is there in the form of:
[Element <5>] [Ring <1>][Edge <7566>][Edge <7591>]
But the exact position of the error is often hard to find in a CAD system.
I want to return edge 7566 and edge 7591 as geometry objects.
So the question is:
Given a geometry object and a list of element,ring,edge elements. How to create geometry objects for these edges?
Rene

How to find an enhacement point in a standard FM.

Hi All,
          I have to find an enhacement point in a standard FM.Please guide me on how to do this?
          Also what all things should i take care of while adding code at the enhancement spot as I
          know sometimes a dump comes in such scenarios.
Please advice,
Saket.

Hi Saket,
Do you want to find an Enhancement Point or an Implicit Enhancement Point?
If you want to find an Enhancement Point, then the string ENHANCEMENT-POINT. Enhacement Points are marked as ENHANCEMENT-POINT <enhancement Point> SPOTS <enhancement spots> STATIC. or ENHANCEMENT-POINT <enhancement Point> SPOTS <enhancement spots>.
If you want to find an Implicit Enhancement Point, then press SHIFT + F4 and then Edit -> Enhancement Operations -> Show Implicit Enhancement Options. This will show you the Implicit Enhancement Points in yellow color (if you are using the Old Front-End-Editor).
You might get dumps for a number of reasons. In that case go to the dump analysis and sort the problem. Moreover you might even get Short Dump while creating implementations of Implicit Enhancement. This generally occurs because of certain missing patches/upadtes. In such a situation ask the BASIS or admin team to upload all the necessary patches or updates.
Hope this helps.
Regards,
Abhisek.

Enhancement Point Creation in Internal table

Hi,
I want to create a Enhancement Point in Internal table declared in Customize Program.
This is more related to clarification of concept related to Enhancment Point.
But when i am putting the cursor inside the internal table and right click and Enhancment -> create ,it is giving me a message
that "Position of enhancement section/point statement is not allowed".
This means that we can't create Enhancement point or Enhancement Section inside the Internal table and solution is we can use
only Implicit Enhancement point.
But the doubt is that i had seen SAP programs where they have created the Enhancement point in the internal table declarations.
How that is possible then?
Please provide your helpful answers to get me more clarification on Enhancement Point/
Thanks,
Manish

Hi Afzal,
Below is the code from standard program :-
DATA: BEGIN OF lbbes OCCURS 10,        "Tabelle für LB-Bestände
        lifnr LIKE ekko-lifnr,
        matnr LIKE mdpm-matnr,
        werks LIKE mdpm-werks,
        charg LIKE lifbe-charg,        " SC-batch: Key-Feld
        lgort LIKE resb-lgort,         " SC-batch
        lbmng LIKE lifbe-lblab,        "LB-Bestandsmenge
        erfmg LIKE mdpm-bdmng,         "Verfügbare Menge
        erfme LIKE mdpm-lagme,         "Basismengeneinheit
        wamng LIKE mdpm-bdmng,
        waame LIKE mdpm-lagme,
        vstel LIKE tvstz-vstel,
        ladgr LIKE marc-ladgr,
        sernp LIKE marc-sernp,
        lblfa LIKE t161v-lblfa,
        bdmng LIKE mdpm-bdmng,   "sum of dep. requirements from SC POs
        bdbam LIKE mdpm-bdmng,   "sum of dep. requirements from SC req's
        rsmng LIKE mdpm-bdmng,         "sum of transfer reservations
        slbbm LIKE mdpm-bdmng,   "sum of third-party SC requisitions
        slbmg LIKE mdpm-bdmng,         "sum of third-party SC POs
        lfimg LIKE komdlgn-lfimg,      "sum of open deliveries
        maktx LIKE mdpm-maktx,
        selkz LIKE sy-calld.
ENHANCEMENT-POINT rm06ellb_03 SPOTS es_rm06ellb STATIC.
$$-Start: RM06ELLB_03----
$$
ENHANCEMENT 3 /CWM/APPL_MM_RM06ELLB.    "active version
DATA:   /cwm/waame LIKE mdpm-lagme,
        /cwm/lbmng LIKE lifbe-lblab,    "LB-Bestandsmenge in ParallelME
        /cwm/erfmg LIKE mdpm-bdmng,     "Verfügbare Menge in ParallelME
        /cwm/erfme LIKE mdpm-lagme,     "ParallelME
        /cwm/meins LIKE mdpm-lagme,     "CW-BasisME
        /cwm/bdmng LIKE mdpm-bdmng,     "sum of dep.req.< SC POs in PME
        /cwm/lfimg LIKE komdlgn-lfimg, "sum of open deliveries in PME
        /cwm/rsmng LIKE mdpm-bdmng,     "sum of transfer reservations
        /cwm/slbbm LIKE mdpm-bdmng, "sum of third-party SC requisitions
        /cwm/slbmg LIKE mdpm-bdmng,     "sum of third-party SC POs
        /cwm/bdbam LIKE mdpm-bdmng. "sum of dep. req´s from SC req's
ENDENHANCEMENT.
$$-End:   RM06ELLB_03----
$$
DATA:
      END OF lbbes.
Now in the internal table lbbes they have created the enhancement point and in implementation of enhancement point they have declare some extra fields.This is not a implicit enhancement but it is a explicit enhancment implementation with the help of enhancement point.
Similarly if i have to do in my customize program then how to go ahead?
I knew that it is possible with Implicit Enhancement point and i can implement that also.
Let me know your views about this.
Thanks,
Manish

ENHANCEMENT-POINT in reprot RM06EPS0

HI ALL,
I want to change report 'RM06EPS0' that is price comparson list, i think of copying this into a z report and then make changes. But when i open the source code it contains statements like this.
[code]ENHANCEMENT-POINT RM06EPS0_G4 SPOTS ES_RM06EPS0 STATIC.
$$-Start: RM06EPS0_G4----
$$
ENHANCEMENT 4 MGV_GENERATED_RM06EPS0. "active version
INITIALIZATION.
DATA: mgv_matnr_prog LIKE rsvar-report,
mgv_matnr_selopt_tab like rsldbdfs occurs 0 with header line.
FIELD-SYMBOLS <mgv_matnr_selopt_conv> TYPE STANDARD TABLE.
ENDENHANCEMENT.[/code]
What are these ENHANCEMENT statement, can we use it to put our logic in standard report if yes when HOW ?
Thanks,

Hi
See the doc
ENHANCEMENT
Syntax
ENHANCEMENT id.
ENDENHANCEMENT.
Effect
: These statements define a source code plug-in with the ID id. Between the statements, a source code enhancement can be implemented. The control structures and processing blocks contained in the implementation must be complete.
The statements ENHANCEMENT and ENDENHANCEMENT can not be entered and edited directly. Instead, they are generated by the ABAP Workbench when enhancements are created as a part of the enhancement concept. The ID id is also assigned by the Workbench.
Notes
: In the terminology of the enhancement concept, a source code plug-in is an enhancement implementation element of a (simple) enhancement implementation.
Although source code plug-ins are displayed in the same source code as the corresponding enhancement options ENHANCEMENT-POINT or ENHANCEMENT-SECTION, they are actually stored in other Include programs that are administrated by the Enhancement Builder.
It is not yet possible to enhance a source code plug-in using further source code plug-ins. This means it is not currently possible to use the statements ENHANCEMENT-POINT and ENHANCEMENT-SECTION between ENHANCEMENT and ENDENHANCEMENT.
Reward points if useful
Regards
Anji

Difference between implicit and explicit enhancement points

Hi Folks,
I had learned many documents to findout the difference between explicit and implicit enhancement point.I got the theoritical knowledge on that but losing on the practical side..
Can anybody help me out with one real time scenario where the explicit enhancement points have been implemented and the step by step procedure to implement it..
Hoping for the positive response from you..
Regards,
Rohan.

Hi Rohan,
In implicit they are available at the beginning of subroutines defined in the standard reports.
Edit-> Enhancement operations->show implicit enhancement options.
This will highlight all the implicit enhancements in the report.
In Explicit enhancement we have two different types of enhancements -
Enhancement point and Enhancement section.
Enhancement point - SAP has some standard functionality defined for a report , but it may be required that you'll need to add your own code. In this case the code that you'll add will be executed along with the standard code.
Enhancement section - SAP has its standard functionality defines but it may not suit your requirement, in that case you may need to add your code and you'll need that code to be executed only. By this method the existing code is automatically commented and a copy of the same code is available to edit.
After executing the report only your code will be executed and the standard code will be bypassed.
For Practicle implementation, follow this link.
Link : [http://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/bb54c452-0801-0010-0e84-a653307fc6fc]
i hope it will give you some clear picture....
Thanks.
Anurag

Query for enhancement point.

how to use enhancement point in report?give me one example for this? give proper ans

Hi Friend,
We can use enhancement point to enhance standard report for customize requirement of our client.
You can create enhancement point in display mode. There is button called Enhance (shift + F4). Click on that and it will ve in change like mode; now you can implement any enhancement point.
To go to display mode press chnage/display button.
Hope it will help you.
Regards
Krishnendu

Wt is enhancement point?

Hi,
can any one have documentation for SAP enhancement point and enhancement spot. Please let me know.
please provide me the link .
Thanks
Venkatesh P

Here are the series over enhancement framework by Thomas Weiss. Go thru them.
/people/thomas.weiss/blog/2006/01/24/what-the-new-enhancement-framework-is-for-150-its-basic-structure-and-elements-for-beginners
The new Enhancement Framework Part 2 - What Else You Need to Know Before Building an Enhancement
How To Define a New BAdI Within the Enhancement Framework - Part 3 of the Series
How to implement a BAdI And How to Use a Filter - Part 4 of the Series on the New Enhancement Framework
Source Code Enhancements - Part 5 of the Series on the New Enhancement Framework
Edited by: Naren K Someneni on Jul 16, 2008 4:05 PM

Enter code in enhancement point

Hi,
Please tell me how i can insert code into an enhancement point. My enhancement point is ENHANCEMENT-POINT MM06BF0B_BUCHEN_01 SPOTS ES_SAPMM06B.
<removed_by_moderator> Thanks.
Edited by: Julius Bussche on Aug 26, 2008 12:51 PM

Hi Charles,
Click on the 'Enhance' button (button lying before the 'check' , 'activate' buttons) of the include MM06BF0B_BUCHEN which contains the enhancement point.
Then right click on the enhancement point and select Enhancement Implementation -> Create. Give your enhancement implementation a name and description. Provide ur code under the enhancement point. Finally activate the implementaion by clicking on the button having symbol '(Activate symbol) Enhancements'.
Regards,
Soumya.

Difference between implicit enhancement and explicit enhancement

What is the difference between implicit enhancement and explicit enhancement .

Hi Peters,
Implicit enhancement option
Throughout the ABAP system, enhancement options are automatically available at certain pre-defined places. Some of the implicit options are:
u2022 At the end of all the programs (Includes, Reports, Function pool, Module pool, etc.), after the last statement
u2022 At the beginning and end of all FORM subroutines
u2022 At the end of all Function Modules
u2022 At the end of all visibility areas (public, protected and private) of local class
To view all the implicit options available in a source code, choose u2018Edit -> Enhancement Operations -> Show Implicit Enhancement Optionsu2019 from the editor.
Befor that you click on the spiral icon button in the application toolbar
Explicit enhancement option
The Implicit enhancement options are provided at specific source code places explicitly by SAP (Note that these enhancement definitions can also be created by partners and customers in their code).
There are two types of Explicit Enhancement options available. One which can be provided at a specific place - called Enhancement Point, and another which can be used to replace a set of statements u2013 called Enhancement Section. For this, we now have two new ABAP statements, viz.
u2022 ENHANCEMENT-POINT
u2022 ENHANCEMENT-SECTION
When the Enhancement-Section is implemented, only the implementation gets executed and the original code doesnu2019t get executed. This is a new technique, which didnu2019t exist previously in any of the old ways of enhancing, to exclude any standard SAP code from execution. Because of this, there can be only one active implementation of an Enhancement-Section. On the other hand, there can be multiple active implementations of an Enhancement-Point, in which case all the implementations will be executed with no guarantee in the order of execution.
For more information check the following link
[http://help.sap.com/saphelp_nw70/helpdata/en/94/9cdc40132a8531e10000000a1550b0/frameset.htm]
Thanks,
Surya

How to find enhancement point or enhancement section

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