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author's profile photo Former Member
Former Member


Hi All,

I am new to ESS/MSS . I have difficulty in understanding the way ESS/MSS

webdynpro applications interacts with SAP .

I worked in webdynpro for quite some time . I know the way we interact with SAP is through BAPIs, we call

BAPI from webdynpro by passing the required values to the model nodes and the BAPI will return the results which will

used by the webdynpro.I know in the BAPI they will do some validations and update or return values form the SAP tables.

But in ESS/MSS i am not getting all the new terms like Conversion classes , Infotypes , Subtyes , UI Structures and How are these

related to the webdynpro applications . I have read some where that if we want to add a new field to the UI we need to do

modifications in these items and that gets reflected in the webdynpro application .

can some one explain me how are these related to webdynpro and what exactly happens when we call a BAPI in the ESS/MSS application.

Full points will be rewared for detailed explanation

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1 Answer

  • author's profile photo Former Member
    Former Member
    Posted on Dec 03, 2007 at 05:11 AM

    Infotype is like a table technically but it saves information on employee number basis.

    you can call it and information object.

    Subtype is used for storing multiple records with diffrent distinction.

    i.e. for address personal address, perm. address, office address are all subtype

    technically its a 4 charachter field.

    BAPIs and RFCs in turn gets called from webdynpro which you already are aware of and the same either fetches or updates data from and into infotypes.

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