Passing Data from a screen to WF & back again

[Winfried Winterstein]

Hi,
 
just a comment to the comment: It is VERY dangerous to
use the get parameter command to retrieve data from a
transaction called within an object method due to
following reasons:
* the parameter could have been changed in another
session within the same login (parameters are stored
globally per user per log-in)
* It could happen that the parameter is not set within
the transaction, because the user e.g. did not
create/change the document called or the transaction
does not update the parameter
 
Possible solution: Check if there are memory id's set
(they are session dependant) so that you can make sure
that the parameter was set within the transaction you
called. Unfortunately not all transactions use the
memory id mechanism...
 
Regards,
WMW (CSC PLOENZKE)
--- Richard Schot <Richard.Schot at avelon-it.com> wrote:
> Hi Menand
>
> I hope I understand you right... you want to pass a
> value to the transaction.
> This will indeed be done by the code as you
> provided. Data will only be passed
> to the transaction if the object is instantiated in
> your workflow definition
> otherwise no value will be passed.
> After calling the transaction you can transfer the
> data from the transaction
> back to your container by the statement GET
> parameter ID.
>
> I hope this will help you
>
> Regards,
> Richard Schot
>
> SAP Business Workflow Consultant
>
> ________________________________
> Avelon
> Visit us at www.avelon-it.com
>
> >===== Original Message From SAP Workflow Users'
> Group
> <SAP-WUG at MITVMA.MIT.EDU> =====
> >Hi Guys / Gals
> >
> >Has anyone got any ideas on how to pass data from
> an SAP Dialog screen to a
> >workflow and back again.
> >
> >The screen is being called via an Object.Method
> >Does the following line imply that the container is
> being updated
> >automatically or do I have to pass data to the
> container?
> >BEGIN_METHOD ZCREATE CHANGING CONTAINER.
> >  SET PARAMETER ID 'MAT' FIELD OBJECT-KEY-MATNR.
> >  CALL TRANSACTION 'ZAL10' AND SKIP FIRST SCREEN.
> >END_METHOD.
> >
> >Any help would be much appreciated.
> >Thanks
> >
> >Regards
> >
> >Menand Odedra
> >Kraft Foods UK
> >Analyst Programmer (Supply Chain)
> >email: modedra at krafteurope.com
> >Tel: 01242 28 4748
 
 
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