Help for N-step workflow Invoice in SRM

[Sandeep Josyula]

Hi

I would like to know the following urgently. plz help.

1. Is there any BADI for n-step invoice workflow in SRM. (Not the admin wf)

2. Can I correlate anything with Shopping cart workflow in terms of BADI
implementation, or the approval preview appearing iin the portal.

3. Why is that for my custom wf, I created by copying 1-step and applyiing a
loop normally working, but the status is not getting updated in approval
preview in the portal ?

I require them asap. plz. help

regards,
Sandeep Josyula
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