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IWO10018: User Fields in Maintenance Order


One of the very frequently asked questions in this space, is about the subject matter, i.e., How can I add Custom fields to my Maintenance Order? In the recent months the author had replied 3 times to discussions related to this topic. It is thought that this topic if documented would be helping many.


This documentation is intended to enable the readers to create the Custom fields in the Maintenance Order, update the Order Master data Table and also display these fields in IW38 Order list output.

Let’s Start


Create Custom fields in the Order Table

The table of our context is AUFK. We need to append our Z-fields to this through the include structure namely CI_AUFK.

The process of creating any custom field starts with creating a Data Element with desired Type and Length or with desired Domain name and with the Field Labels we want to have for the Customer fields. For our Demo, we have created Two Data Elements, namely :

1. ZCUSTFLD1 (Domain CHAR12 and Field Label ‘Customer Field 1’)

2. ZCUSTFLD2 (Domain CHAR40 and Field Label ‘Customer Field 2’)

Now let us create our Customer fields Run Tcode SE11 –> give value AUFK in the Database Table field –>Click on Display. Scroll-down to find include table CI_AUFK. Double click on this, Go to Change mode and Add 2 new fields of our interest as shown in the picture and Activate.


As seen in the picture, we have created Two Customer-Fields namely ZZCUSTFLD1 and ZZCUSTFLD2. It is essential for all Customer fields used in Enhancement purposes to be prefixed with ZZActivate the Structure.


Enhancement and Screen-Exit

1, Create an Enhancement Project say ZPMORDER using Tcode CMOD.


2. Assign Enhancement IWO0018 to this project.


3. Click on Components in the picture above to reach this screen.


4. Activate by clicking on the Activate Icon (shown in picture above)


As we see here, there is One screen-exit (screen 0900) and Two Function-Exits namely EXIT_SAPLCOIH_018 and EXIT_SAPLCOIH_019 in this enhancement. Double Click on this screen number to create a Sub-Screen for holding our Custom Fields. You’ll get this pop-up. Press Enter and Continue.


You’re in the screen below, where you’ll give a Description, Select the Subscreen Radio button, Save and Activate.


Click on Layout Arrow in the Application Toolbar of (See the picture above) to reach the Screen-Painter pop-up window, where we will be creating :

1. A Box to hold our Z-fields

2. Text Fields to for Z-field labels

3. Input Fields for Z-fields


The input fields should be referred to the Dictionary fields we have just created. (AUFK-ZZCUSTFLD1 and AUFK-ZZCUSTFLD2)

See the picture.




1. Declare table AUFK

Declare table AUFK in the top include LXWOCTOP of Function group XWOC by Clicking on and creating the include ZXWOCTOP .


2. Codes to be given in Function-Exits

Go to the following screen of the User-exit


Double click on the Function-Exit EXIT_SAPLCOIH_018 and put the following code in the include ZXWOCU15.




Similarly put the following code in the include ZXWOCU16  of the Function-Exit EXIT_SAPLCOIH_019.




Now let’s see the effect of work done so far.

Create a Maintenance Order (IW31). You will see an Additional Tab named Enhancement has been added here by the system, in which our Custom fields appear with their labels and the input fields.


Now let’s add some values in these fields and Save the Order.


Run IW32, open the Order and verify whether the values are updated to table or not. If they are appearing in the Enhancement tab as you have entered and saved, this means the AUFK table has been updated with these values when Order was saved.


Let’s have these Custom fields in the Order list output namely the ALV of Tcode IW38

So far we have succeeded in creating our Custom fields and updating the values to the Order Master data. Next natural requirement of a user would be to have these fields in IW38 ALV screen. For this purpose we, need to create an Append Structure in the Structure RIHAUFK_LIST, as shown in the picture below. The

Tcode is SE11 again for this task. Here we have created an Append Structure named ZCUSTFLD and in this structure we have added both the Custom fields.


Now let’s create one more Order, fill the custom fields with some values and Save. The second order is to have ALV output in IW38. (Because single Order in the output takes to IW33 screen instead of ALV screen). Now run IW38 with selection parameters to display these 2 orders we created. Click on the icon shown , You’d find the Custom fields in the Column-set list, Bring them to Displayed list on the Right hand side.


Almost Done

Now if you go to IW33, unlike all other greyed-out fields, the Custom fields in Enhancement Tab will be seen Editable. Though there is no provision to Save the edits here, you’d definitely like to have these fields too in Greyed-out mode.

For this we need to write a small code in the PBO (Process Before Output) module of the screen 0900 we have created.  Double click on the Screen number 0900 of the enhancement,


Now you are in the Flow Logic Tab ,


Un-comment line MODULE STATUS_900. and D’Click on the STATUS_0900 of the PBO module. Insert the following code between the MODULE, END MODULE lines like this.



     IF SY-TCODE = ‘IW33’.

          LOOP AT SCREEN.

               SCREEN-INPUT = ‘0’.

               MODIFY SCREEN.





Lastly Do not Forget to
Activate the Function Group XWOC from Tcode SE80. Right click on the Function Group and click on the Activate option


…… and thus we reach to the end of this knowledge sharing Documentation.


1. As this is largely a Technical job, it is recommended to be developed through an experienced ABAPer, especially Part1 which involves Activating the Standard table AUFK.

2. The Environment of Author is ECC 6.0 with no EHPs, hence the document applicability.

Expecting this document too would be of use to many of the members,

See also these related posts

How To add Custom Fields as Selection Inputs to IW38/39

Defaulting a value to the Custom Field

Thank you


Comments are closed.
  • Rather than controlling the screen attributes by transaction code as in the example above, I'd recommend using the function module CO_IH_GET_EFFECTIVE_ACT_TYPE to determine the effective activity type of the current maintenance order. This function module also considers the currently active status of the order.

    This approach ensures the custom fields are closed for input if the order is being processed in IW32 but the order is completed or locked etc.

  • Very nice document.

    Here's some supplementary information:

    • You can have multiple sub-tabs on the Enhancement tab. This can be very useful when you need different info for, say, different plants and/or countries. These sub-tabs can be hidden if required to reduce complexity and hide sensitive data
    • You can also show tables on this Enhancement tab. For example, we have added additional operation fields (or the user-fields) on this tab. However, if you use this method you cannot add the new fields to CI_AUFK as described above due to the N:1 relationship to the order header.
    • Unfortunately you cannot rename the Enhancement tab.
  • Hello,

    Your document is very interesting but I have a problem with AUFK. The AUFK table isn't available either in ZXWOCU15 or ZXWOCU16. So, I can't make the move-corresponding from/to aufk as you make in your document. Could you help me please?

    Can't do



    Is there any additional step?


  • Hello Sir,

    Nice document indeed. It opened a lot of possibilities.

    I wanted  to ask you as to how to activate field AUSWK in PM Notification.




      Though the question does not relate to the subject document, here is my reply.

      In SPRO in the following path


      Give the following subscreen number (020)  in  Responsibilities  tab (in the Notification Type you want this field AUSWK)


      After this you will see the field AUSWK (Effect)  in the Responsibilities  tab in the screen area named Effect on the system.

      (Request you to create a discussion in situations like this).

      Best of luck


      • Thanks so much. I understand your concern. It is only that trying for the solution on the forum was not bearing fruit and then got to your nice article and you know.

        I still have some query on this but I am afraid I am going to have to open a new discussion 😀 .

        Thanks again.


      • Hi Jogeshwara,

        Firstly i want to thank you for sush a good blog.

        I a requirement in which i have added a new field Process order in IW21 tcode.

        The same field (process order) has been added in IW31 tcode as well.

        Now the requirement is that when I was create a notification in IW21 if i gave a process order the same has to be reflected when i click on create order in IW21 tcode the  process order field should be auto populated in IW31 as well.

        We cannot find the field value in QMEL table as the notification is not yet saved.

        Can you please let me know how to acheive?

        Thanks in advance.

        • Hello Balaji,

          It is a good question. Normally the Screen-exits are Development conveniences provided by SAP for easily meeting our simple non-standard requirements. Yours being an in-depth ABAP query, the expertise to answer would lie in ABAP space only. So suggest you to crate a question in that space. If you have got an ABAPer, he can spend time in some research, through which it could become possible.

          Best of luck


  • Hello Sir, thanks for the good information!

    I'm looking for a enhancement to include new fields from CI_AFVU under the Operations tab.

    Do you know if it is possible?

    Thanks in advance!


    • Hello Leandro,

      This page (Enhancement tab of operation) already have several enhancement fields through standard. I have  never user IWO10018 to add more such fields to Operations enhancement tab. Presently I am off-system and likely to be so for several days. In case it is possible at sometime I will check about it. . Better you should start a new thread.

      Thank you & Regards

      Jogeswara Rao

      • Hi Joseswara,

        Thanks a lot!

        I think I'll take the Pete's hint and i will include sub-tabs on the Enhancement tab of the header view and so include a grid with information of operations.

        However, if you find something about my solicitation, please, share with me.

        Once again, thank you!

  • Thank you very much ..

    however, a very important part is missing,

    the Declaration of AUFK in the TOP INCLUDE.

    Because if you don't declare it you'll face an error message:

    "Field "AUFK" is unknown. It is neither in one of the specified tables

    nor defined by a "DATA" statement."

    So, go to include: LXWOCTOP

    double click and create include: ZXWOCTOP

    inside that you'll insert the following

    tables AUFK.

    once you activate .. the error will not appear again 🙂

  • Hi Jogeswara,

                            I have read this document, which is really very good exploration.

    Many-2 thanks to you for sharing such kind of documents..... 🙂

  • Hi Jogeswara,

    The document is pretty comprehensive.I have a question that in IW32 headerdata tab screen,are the tabs Malfnctn data,Damage,Notif.dates as shown below are standard functionality of SAP that are coming through some customizing.Any lights on this will be highly appreciated.

    Thanks and Regards


    • The following setting brings this info into the Order related to Notification.

      Plant Maintenance and Customer Service > Maintenance and Service Processing > Maintenance and Service Orders > Functions and Settings for Order Types > Define Notification and Order Integration.


      As per this setting Order created through M2 notifications will have the Malfunction data in the Header page of the Order.

      Becuase this topic is not connected to the present topic, you are advised to post a query, in case you have further questions.


  • Hi, it is somewhat related to this as we have a requirement to add a custom field in the work order which should contain the ordering address (entry required for specific vendors entered in the work order).  This then needs to be transferred to the purchase requisition that gets automatically created once the work order is released.  Is this possible? 

    • While describing the requirement, you have entered the PR zone, which needs to be explored through other exits in that function group. Contact your ABAPer.

Comments are closed.