Webdynpro ABAP Naming Conventions

Hi All
Can any body help me with writing Naming Conventions for development in Webdynpro ABAP. Is there any documentation regarding this........any help will be highly appreciated.
cheers
AJ

I use these that were suggested in the Web Dypro for ABAP book.
View Element     ID Prefix     Example
Business Graphics     BGR_*     BGR_SALES
Button                     BTN_*     BTN_SAVE
ButtonRow                     BTR_*     BTR_DETAILS
Caption                     CPT_*     CPT_COLUMN
DropDownByIndex     DDI_*     DDI_COUNTRY
DropDownByKey     DDK_*     DDK_REGION
FileUpload      FUD_*     FUD_CONTRACT
Group                     GRP_*     GRP_FORM
HorizontalGutter     HOG_*     HOG_ROADMAP
InputField                     INP_*     INP_NAME
InteractiveForm     IFO_*     IFO_CUSTOMS
Label                     LBL_*     LBL_INPUT
LinkToAction     LTA_*     LTA_SEARCH
LinkToURL                     LTU_*     LTU_VENDOR
RadioButton     RBT_*     RBT_MALE
RadioButtonGroupByIndex     RBI_*     RBI_GENDER
RadioButtonGroupByKey     RBK_*     RBK_TYP
RoadMap                     RMP_*     RMP_DIMENSIONS
RoadMapStep     STP_*     STP_DIMENSION
Table                     TBL_*     TBL_ADDRESS
TextEdit                     TXE_*     TXE_INFO
TextView                     TXV_*     TXV_INTRO
TimedTrigger     TTR_*     TTR_NOTIFY
TransparentContainer     TCO_*     TCO_TABLE
Tray                     TRY_*     TRY_FORM
Tree                     TRE_*     TRE_SIMPLE
TeeeNodeType     TNT_*     TNT_FOLDER
TreeItemType     TIT_*     TIT_FILE
ViewContainerUIElement     VCU_*     VCU_ROADMAP
Window                     W_*     W_DEFAULT
View                     V_*     V_DEFAULT
Inbound Plug     IP_*     IP_START
Outbound Plug     OP_*     OP_EXIT
Apologies for the formatting but the table won't paste properly in plain text - only on IE6 here.
Edited by: Ian Stubbings on Jul 3, 2008 12:02 PM

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ABAP Naming Conventions

Hi All,
I'm looking for a document describing ALL basic ABAP Naming Conventions. For example, how to name data types such as tables, structures, predefined ABAP types, and so on. Furthermore, it would be desirable to know how the declaration changes in different contexts - report, form, function module, class, and so on.
Thank you.

Hi,
as I am working as a consultant for lots of companies in last 10 years, I know that there is no such document. Each company has it's own naming conventions and programming guides. The only thing that is common for all companies is: All customer defined stuff starts with a Z or a Y and in case the company registered it's own name space it starts with /<name space/. May be, somebody can send you these guides coming from whatever company.
regards
Siggi

SAP naming conventions: customer DDIC objects, ABAP programming

SAP Note 16466 Customer name range for SAP objects contains the SAP naming conventions for customer DDIC objects. Rule of thumb is that the names reserved for customer objects start with 'Y' or 'Z'. However, this note contains the naming convention for DDIC objects only.
ABAP Code Inspector (transaction SCI) contains the following naming convention for ABAP programming:
- Global types: T_
- Global constants: C_
- Global data: gv_
- Global field-symbols: FS_
- Global parameters: P_
- Global select-options: S_
- Global field-groups: FS_
- Local types: LT_
- Local constants: LC_
- Local data: v_
- Local field-symbols: LFS_
This is the only place I know for ABAP programming naming convention. Does SAP has somewhere else any additional naming convention guidelines for ABAP programming?
Thanks in advance for your help.
Regards,
Jarmo Tuominen

Naming convention guidelines for ABAP programming is available in here: [Manage Successful Customer Development|https://websmp206.sap-ag.de/~sapidb/011000358700004444532001E].
Naming Data Types and Objects
The names of data types and objects have the form: <Classifier>_<Data type>_<Descriptor>.
The names of data types and objects have up to 30 characters.
Exceptions: names of input parameters and select options have up to 8 characters, and <Data type> and _ are omitted.
First component: Classifier
T Data type
C Constant
G Global data object
L Local data object
FS Field symbol
P Input parameter
S Select option
P Formal parameter in form
FM Formal parameter in function
Second component: Data Type
<t> Elementary data type, optionally followed by length
C<n> Type C of length <n>
N<l> Type N of length <n>
X<l> Type X of length <n>
D Type D
T Type T
I Type I
P<d> Type P with <d> decimals
F Type F
WA Work area
IT Internal table
Third component: Descriptor
Use meaningful English names. Later, your code may be maintained or analyzed by a programmer or support consultant who is not familiar with another language.
Use only alphanumeric characters (A-Z and 0-9) and separate words with underscores (_). Hyphens are reserved for separating components in structured data types.
Examples:
G_I_COUNTER (global counter)
T_IT_BOOKING_LIST (type for list of bookings)
G_IT_BOOKINGS (global internal table of bookings)
PSMOKER (input parameter for smoker flag: note omission of data type and _ for brevity)
Edited by: Jarmo Tuominen on Feb 21, 2011 2:13 PM

How to create a table to use in webdynpro ABAP

Hi Guys,
Can anybody let me know how to create a table to use in webdynpro ABAP. I am new to ABAP. It would appreciable if i get useful answer. Thanks In Advance
Regards
Ravi

Hi! You can use transaction code SE11. Please refer to http://help.sap.com/saphelp_nw70/helpdata/en/6c/f2934259a5c66ae10000000a155106/frameset.htm
Please note that table name should start with 'Y' or 'Z' - by SAP naming conventions object names starting with 'Y' and 'Z' are reserved for customer application development.
Please reward points if helpful

Create PMD (Clinical Document) Document from Webdynpro ABAP

Greetings everyone,
I have developed two PMD document category(Tcode :N2T6 ) for Clinical documents in SAP R/3 and somehow with the limitation of R/3 in terms of developing user friendly screens like Auto fill and image processing etc...,Users do not satisfy with it.So we are planning to develop in Webdynpro ABAP.But i am not sure how do we integrate the webdynpro development with IS-H PMD (clinical documents) documents ,also I am looking for BAPI's to create our customized parameterized documents.Any help will be really appreciated.
Thanks,
Vignesh

Hi Vignesh,
You are right that certain features, such as auto-completion, are not supported in the PMD toolset. But as most of the data captured in those documents have a high importance for treatment process, you need to elobarate whether such a feature has any impact on patient safety. Just a quick one - user types An ... and the system determines matching diagnoses such Anorexia or Angina. In case the user picks the wrong one by accident the patient safety is an issue.
Other features such as image management can be used. For that you need to use a PMD link module which does provide the image integration. Siemens will ship in the next release EhP6 such a link module for a third party imaging software. Beforehand the link module use with custom development.
In general Siemens has started a product redesign program named "Smart UI". It's major aim is to provide an up-to-date user interface for all major application within i.s.h.med. The very first application we plan to ship is a web-based electronical medical record.
In case you still want to develop your application, I'm sorry to say, but there are no BAPIs or Web services in the standard delivery. For changes to existing documents you can utilize the PMD API of generator version 2. But be aware that document creation is not supported by the API. You need to have a document. Also certain user exit developments may brake a change without having the GUI running. For instance a popup in the save routine will cause a dump if no SAP GUI is available.
Hope this help.
Axel Biernat
Siemens AG
Product Commercialize

Storage Location Naming Convention without WM!

Dear all
We are facing serious problem in our Storage Location for Raw Material.
We have 4 types of Raw Material Seating (S), Panel (P), Metal (M), Wood (W). And they are all stored under Storage Location: RWSL.
Requirement:
Although we have visual guideline as to which industrial rack will store the type of Material, it is insufficient. We need a more refined storage location down to which BIN of the rack we will put the Raw Material.
Due to limited time and resource, we cannot have WM implemented right now. Thus, we have come out with 2 alternative to overcome this problem:
Alternative 01:
We will use the Fixed Bin field in Storage Data 02 by putting the Bin number assigned to each Rack.
E.g. For Seating material code:SEAT01, we will maintain the Fixed Bin as R12A01/A02, it means this Seating material SEAT01 will be stored at Rack 12, fixed bin A01 or A02.
Question to Alternative 01: Will it cause problem in GR, GR, Transfer Posting and Stock Count?
Alternative 02:
Instead of going into details to put Fixed Bin field in Storage Data 2, we will abandan the existing Storage Location RMSL by introducing new format for Storage Location
Here is the example of Alternative 02:
For raw materials, we will use 4 digits location numbers, consistent with other Storage locations, the 4 digits storage location will start with u201CR _ _ _u201D to represent each location
And,
R _ _ _ is:
R = Raw materials
2nd digit = Division (S= Seating, P =Panel, W=Wood, M=Metal and W=Wood)
3rd digit = Rack Number (A, B, C, Du2026 and etc.)
4th digit = Rack Zone - each rack will broken down into zone, each rack can possibility have 2 to 3 zone. 1 Zone can be 1 colume of the Rack
An example of a possible location and its meaning will be
RSA1 = Raw materials warehouse, Seating division, Rack A, Zone 1
RPB3 = Raw materials warehouse, Panel Division, Rack B, Zone 3
The challenge of this is that instead of having 1 Raw Material Storage Location like RMSL, we will have a lot more storage locations each for division of Raw material due to the Rack Number we have as well as the Rack Zone.
Question to Alternative 02:
If we use this alternative, will it impact our future implementation of WM? From design wise, is it feasible?
Please advise what is the best approach and the feasible design on it.
Many thanks in advance.
Edited by: Daimos on May 13, 2009 10:15 AM

Hi, here is the Pro and Co of both approaches:
Method 01: Use existing SLOC and add the Storage Bin info
e.g. SLOC: STM1
         Storage Bin: RSC3, where RS = Rack Seating, C3 = column 3
Pro 01:
It will cause less effort as we only need to use LSMW for material master to add in the Storage Bin data for all material of SCM.
Pro 02:
I have tested out that in TCode MIGO, apart from SLOC, the pertaining Storage Bin data also appear. Based on my discuss with Xian Chen, sometimes they use MB1C(GR), MB1A(GI) rather than MIGO due to speed issue, I will need to check the field status if can have Storage Bin field APPEAR, if can, it will solve the problem
Con 01:
The Storage Bin information will only appear in MMBE (Stock Overview) but will not appear in the standard SAP Inventory Report (e.g. MB52 Warehouse Stock). To view it from SAP Inventory Report, we may need to customize the standard report to show the new field Storage Bin. It needs Abap effort.
Con 02:
We must have a very good naming convention for Storage Bin. And again, in the above example, if a material is put in SLOC STM1 at Storage Bin RA A1 or C4, it will set a very rigid rule in the future if we need to change it, as I fear that one the Storage Bin has been used up. It will not allow us to change (need to do testing to find out)
Con 03:
Do we have the time to define all the Storage Bin for each SLOC? Operation wise, the store personnel needs to design it
Method 02: Use the new SLOC
Pro 01:
RSA1 = Raw materials warehouse, Seating division, Rack A, Zone 1. More organized. Easy to tell the material is at which Rack and which Zone of the Rack.
Assumption:
01. we must not have too many rack for one Seating division and also not too many Zone for each
      Division, else it will cause confusion
02. 1 material should stick to 1 Rack 1 zone as much as possible, else later the PP consultant will
     have hard to to perform GI due to too many SLOC assigned to a material.
Pro 02:
In report wise, we are able to show the SLOC in inventory report. No need to enhance the existing inventory report as we do not use Storage Bin.
Con 01:
If there are too many SLOC creation due to it. It may cause problem for PP perform GI as too many selection available for a material. This can be avoided if stick to the General Rule that one material is tied with one SLOC.
Edited by: Daimos on May 16, 2009 5:07 AM

How to use webdynpro abap? need separate software? or please help me.. :-)

How to use webdynpro abap? need any separate software? if no, please help me with Transaction Codes..
Thanks in Advance
-Parthi
Moderator message: please search for available information/documentation.
Edited by: Thomas Zloch on Oct 19, 2011 8:18 PM

I don't think you quite understand how hibernation mode works.
"The state of a computer is stored into its main memory, which is also called RAM. When a
computer is powered off, the contents of this memory are irremediably wiped out. Hiberna-
tion works in the following way: before being powered off, the computer saves all the con-
tents of the memory to a ﬁle on the hard disk drive. On wake up, data stored in this ﬁle is
read out and restored to the memory. Therefore, the RAM contents are the same before
and after the hibernation process, and the state of the computer is also the same. The
saved ﬁle is named sleepimage, and is located in the /private/var/vm directory. Hi-
bernation is sometimes also called “software suspend” or “suspend to disk”.
The default suspension feature of Mac OS X, called sleep works in a different way. When
entering sleep, every subsystem of the computer is shut down, except the main memory
which is still powered. This process preserves the contents of the memory, and allows the
computer to wake up quickly. However, a sleeping computer still consumes a small
amount of power. Sleep is sometimes also called “hardware suspend” or “suspend to
RAM”.
Apple introduced the safe sleep feature in Mac OS X 10.4.3 for the Powerbook HD line of
laptops. This feature is a variation of the default suspension behavior. The main memory is
still powered during the sleep, but the contents of the memory are also saved to the disk at
the beginning of the operation. The saved ﬁle will only be used if the laptop runs out of bat-
tery power while sleeping, in order to restore the original state of the computer.
This safe sleep feature is what makes hibernation possible in Mac OS X 10.4.3 and above."
Quoted from *Deep Sleep v. 0.7 documentation*
Matthieu Beaumel, 10/03/2006

Variable naming conventions

Hi all,
I come from a mostly JAVA background. Big emphasis in that arena on encapsulation and modularization of code to help facilitate ease of maintenance and reuse...in theory I sometimes struggle with variable naming conventions within my ABAP code because I'm not all together certain there are any. In C or C++ I might use a derivation of Hungarian notation to name varaibles...and in JAVA I might observe certain object oriented rules regarding varaible naming...I find myself using a combination of those two protocols in my ABAP code. Does anyone have any suggestions for how I might name global and lcoal variables within my code?
regards,
Mat

Hi,
Please check this links perhaps they may help.
http://help.sap.com/saphelp_nw04/helpdata/en/92/c2b084bc1d11d2958700a0c94260a5/content.htm
https://websmp101.sap-ag.de/~sapdownload/011000358700004455192006E/NameConventions.pdf
http://help.sap.com/saphelp_nw04/helpdata/en/2a/6b0b1f547a11d189600000e829fbbd/content.htm
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/011ccf90-0201-0010-92a7-b319adf89b73
http://web.mit.edu/sapr3/dev/newdevstand.html
Regards,
Ferry Lianto

Checking naming convention of internal tables in code inspector

Can anyone please explain how in the code inspector can I check names of internal tables (like it_) that I use in a report program ? I know that I can specify it_ in Programming Convention -> Naming Convention->Program Global -> Data but this entry is not specific to internal tables as it also applies to variables and work areas. Apart from this is there any entry I can maintain in the Extended Naming Conventions for Programs(introduced in ECC 6.0)? Kindly reply at the earliest.

Hi,
Check these links for implementing the custom conventions in the code inspector
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/nw/how%20to%20build%20a%20new%20check%20for%20the%20code%20inspector
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/abap/evaluating%20the%20quality%20of%20your%20abap%20programs%20and%20other%20repository%20objects%20with%20the%20code%20inspector
hope it helps you.
Thanks!

Webdynpro ABAP in ECC 6.0 version

Hi to all,
I am trying to create one simple webdynpro application but In view layout I don't able to see elements.
Can anybody please tell the possible reasons behind it and how to solve this?
Regards,
Umang

hi ,
in ur Web dynpro component
1 double click on the view
2 go to the Layout tab in the view
3 On the very RHS , under CONTEXT_MENUS , there is a root element container
4 right click on the root element container and choose insert element
5 u can give appropriate type , eg if u wish to insert Button , u cn give type as Button and Id
check out for the naming conventions , different layouts while designing the layout with UI elements in ur view
regrds,
amit

Modification in standard webdynpro abap application

Hi
In my portal for some of my ESS applications are used in webdynpro abap for example travel expense and travel request now i have a requirement like i have to make the create travel expense button disable based on the condition llike i only he has to click create travel expense after creating travel request .So can anybody let us know how to do modofications in the standard webdynpro abap application.
Thanks in advance.

Hi
For making changes in the standard web dynpro compoenent, you need to create and implement enhancement.
For this you can find many links in SDN on how to create enhancement.
Now coming to your specific requirement.
Here what you can do is open the standard component.
1. press ctrl +F4, It will open a popup there give some name to your enhancement.and desicrption . then press Enter.
Assign it to teh package you want.
2. Go to the view where you want to disable the button, There go to the layout and find the ID of the button. say it is 'BTN'.
3. Now go to methods tab, scroll right and selct post exit method of wddomodifyview emthod.
4. there write the code with the condition you want.
if flag eq 'yes'.
data lv_btn type ref to cl_wd_button.
lv_btn ?= view->get_element( 'BTN' ).
lv_btn->set_enabled( abap_false ).
endif.
5. one last thing is you can create a attribute named flag of type string and set its value to 'yes' when you want the button to enable.
Thanks
Sarbjeet Singh

Testing a webdynpro-abap application

Hi friends,
 I have created a webdynpro application which calls the bapi get_flightlist.
 while testing the application its throwing an exception : ICF service node for application /sap/public/myssocntl does not exist
So i have checked in the SICF this service is not activated. but i didnt understand whats the role of the myssocntl while testing the webdynpro application.
Can anybody tell me whats the myssocntl and how it will be useful for executing a webdynpro application.
Thanks in advance.
Regards
Sireesha.

Hi Sireesha,
 You can check SICF settings in help.sap.com
 I have a PDF where they have mentioned these settings.
 Search in help.sap.com and you will get the answer.
When you use your own Namespaces [external] (see also Reservation of Namespaces
[external]) there are some peculiarities to note with regard to the paths in the ICF Internet
service tree and in the MIME repository.
When creating your own name spaces follow the rules set out in Defining
Naming Conventions [external].
Normally a Web Dynpro application is created in SE80 either in the SAP namespace using its
simple name, for example, myapp, or in a customer namespace using the complex name
specification, /<Namespace>/<Application name>, for example, /test40p/myapp.
Accordingly, the ICF path is under both /sap/ and your own namespace.
Hope this will help you.
Cheers,
Darshna.
Message was edited by:
 Darshna Thole

Best practices in Internal table naming convention GT , GS , LT , LS ??

Hi Gurus,
 Are GT_ , GS_ , LT_ , LS_ --- the Best practices in Internal table naming convention ????
 I have seen this naming convetions adhered in standard programs .
 What each one of the below signify
 GT_ , GS_ , LT_ , LS_ ???????
Regards
Jaman
Message was edited by:
 ABAP Techie

Hello
I use the following naming conventions:
- G = global variable
- L = local variable
- T = internal table
- S = structure
- D = field
That's how the combinations look like:
- GT_ITAB = global itab
- GS_STRUC = global structure
- GD_FIELD = global field
- LT_ITAB = local itab
- LS_STRUC = local structure
- LD_FIELD = local field
Function module parameters have to stick to the following rules:
- I = importing
- E = exporting
- [C = changing -> never used]
- IT_ITAB = imported table type (itab)
- IS_STRUC = imported structure
- ID_FIELD = imported field
- ET_ITAB = exported table type (itab)
- ES_STRUC = exported structure
- ED_FIELD = exported field
Depending on their semantics TABLES parameters look like:
- IT_ITAB = imported data
- ET_ITAB = exported data
- XT_ITAB = changing data (import & export)
Here are the conventions for FORM routine parameters:
- UT_ITAB = using itab (data are usually treated like constants; no changes will be transfer - although possible - to the calling program)
- CT_ITAB = changing itab (if it is semantically an exporting itab then one of the very
first statements in the routine is: REFRESH ct_itab. )
- US_STRUCT
- UD_FIELD
- CS_STRUCT
- CS_FIELD
Conventions for class/interface parameters:
- IT_ITAB = importing table type
- IS_STRUC = importing structure
- ID_FIELD = importing field
- ET_ITAB = exporting table type
- ES_STRUC = exporting structure
- ED_FIELD = exporting field
- RT_ITAB = returning table type
- RS_STRUC = returning structure
- RD_FIELD = returning field
Conventions for class/interface attributes:
- MT_ITAB = table type
- MS_STRUC = structure
- MD_FIELD = field
- MC_CONST = constant
Question: Are there any advantages of such elaborated naming conventions?
My answer to this question is: Yes, definitively.
I believe that the advantage of semantically differentiating TABLES parameters of function modules is quite obvious:
CALL FUNCTION 'Z_BAD_NAMING'
 TABLES
 itab1 = ...
 itab2 = ...
 itab3 = ... .
CALL FUNCTION 'Z_GOOD_NAMING'
 TABLES
 it_itab1 = ...
 et_itab2 = ...
 xt_itab3 = ... .
I also believe that my naming conventions clearly enhance readability and maintainability of my programs.
Regards
Uwe

How to create new check for SELECT* , Naming conventions etc..

Hi all,
   I would like have a solution for the below checks are possible or not in ABAP - CODE INSPECTOR. If possible can you please give me the solution..
a). Performance checks i.e, SELECT* , LOOP without field strings, FOR ALL ENTRIES IN SELECT STATEMENT.
b). Custom naming conventions.
c). to check if further modularization can be done in the program,
d). also the coding standards.
PLEASE help me , i am struck with it for long time in getting the solution...

> a). Performance checks i.e, SELECT* , LOOP without field strings, FOR ALL ENTRIES IN SELECT STATEMENT.
> b). Custom naming conventions.
> c). to check if further modularization can be done in the program,
> d). also the coding standards.
the code inspector allows the creation of new checks, you should consult the documentation how to do it.
The main problem of the code inspector are hits, which are actually no problem. And I think this is a problem with your checks:
+ SELECT* this is no performance problem, only in cases when the table is really wide then a field list makes sense, i.e your check
   will find a lot of false hits
+ LOOP without field strings ... you mean fs =field symbols, same as with SELECT *
+ FOR ALL ENTRIES IN SELECT STATEMENT   ???? FOR ALL ENTRIES is fine
+ Custom naming conventions ... hmmm be more precise, I think it can be hard
+ to check if further modularization can be done in the program,
    before you want to program can you please explain how you check manually .... I would be interested
+ also the coding standards.   .... what is that?

SAP Naming Conventions for DB Data Files

Hi Everyone!
We are about to install a SAP ECC 6.0 SR3 ABAP on Windows Server 2008 (R2) & SQL Server 2008 SP1 and we want to name the DB data files as follows:
<sid>DB_Data_001.MDF/NDF
Do you see any problem with this or think this could lead to a problem in the future?
We were unable to find a SAP note or SAP recommendation about this, we only found SAP Note 27428 but itu2019s for Oracle.
Thanks in advance!
Best Regards,
Nicolas

Hi Nicolas,
I thought about all corners where this could possibly lead to a problem (e.g. monitoring, DB13, ...) but couldn't think of a single report or transaction where this would cause problems.
To the database itself the names of the files do not matter at all and in the SAP transactions the datafiles are only read to display them in monitoring transactions like DB02 or RZ20. These transaction do not expect a certain naming convention so I don't see anything that would count against using different filenames.
Regards,
Beate Grötschnig

Webdynpro ABAP Naming Conventions

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