Back-Navigation in Guided Procedures

Hello,
i have got a very large guided procedure. There are loops, sequences and alternatives.
In each step the user performs an input in a Visual Composer created UI. After each step the data is forwared to an SAP System with a webservice call.
At the end of the guided procedure the final service is called, which performs checks the input data on the SAP System.
If it fails, the user has to correct some of the input data he made in the guided procedure.
But it seems to be impossible to go to a past step in the guided procedure. Everytime i click on one of the past steps it just reports "Action has been completed".
Is it possible to make the steps back-navigatable? So that the user can re-input the data?
Greetings
Florian
Edited by: Florian Kandlinger on Aug 21, 2008 10:24 AM

Hi,
as per my knowledge, you can,t open the completed action.What you have to do is that you have to send the control to that action again.
As per My understanding, your process will be like this:
1) UI page
2) Web service
the standered is that The web service will return GDT Log structure in case on any exception. That strucyutre will include the severity of the error. By checking this severity property, you can know whether any exception occured in the backend.
After Web service action, include one decision action that checks this serveirty. If exception occures, you set the Result state of decision action to the UI page again so that the user again go to the UI page and enters the Data.
you can go throuh the following Arcitechtechtural documents to understand this.
[Architecture Guideline Series for Composite Applications|https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/00caf8bd-487a-2a10-36a9-93d840309310] go through the application services part.
[Architecture Guideline Series for Composite Applications process layer|https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/1078e3b0-ec5d-2a10-f08a-c9b878917b19] go through the GP Part.
Sampath

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