N-step process driven workflow in SRM7

I am trying to develop a custom n-step workflow in SRM7. To begin with I thought I would copy the standard Spending Limit n-step set up, get it working and then adapt the code. When I set up my process schema with SAP standard evaluation ID 0EV_SC_SL2 ("n-Level Output Limit Approval Process") and Resp. Resolver name RR_SPENDING_LIMIT_APPROVER in debugging the flow is this:
1. CREATE_PROCESS_LEVEL_CONFIG code executes, builds table with 2 approvers
2. CREATE_PROCESS_LEVEL_CONFIG code executes again, builds (same) table with 2 approvers
3. Method PREV_APPROVAL_LIMIT executes, exits with CATCH since previous approver not found
4. Method PREV_APPROVAL_LIMIT executes, finds the previous approver and returns his approval limit, which is not sufficient to approve the cart.
5. Method PREV_APPROVAL_LIMIT executes, finds the previous approver and returns his approval limit, which is sufficient to approve the cart
6. We get an approval with 2 approvers.
However, when I replace the Resp. Resolver name with my own Z resolver which points to the CREATE_PROCESS_LEVEL_CONFIG code I have copied from the equivalent RR_SPENDING_LIMIT_APPROVER code the flow is this:
1. CREATE_PROCESS_LEVEL_CONFIG code executes, builds table with 2 approvers
2. CREATE_PROCESS_LEVEL_CONFIG code executes again, builds (same) table with 2 approvers
3. Method PREV_APPROVAL_LIMIT executes, exits with CATCH since previous approver not found
...so far so good, exactly like SAP standard, but then...
4. CREATE_PROCESS_LEVEL_CONFIG code executes again, builds (same) table with 2 approvers
5. Method PREV_APPROVAL_LIMIT executes, exits with CATCH since previous approver not found
6. Points 4 & 5 repeat over and over in a loop.
So the method PREV_APPROVAL_LIMIT never succeeds in finding a previous approver since the process seems to start from the beginning again each time none is found.
So my question is this - what is it with my Z Resp. Resolver name that makes the system return to the process level config method each time the previous approver cannot be found when SAP standard does not produce this behaviour?
<< Moderator message - Please do not offer points >>
Thanks and Best regards,
Martin
Edited by: Rob Burbank on Oct 21, 2010 4:44 PM

Hi all,
I am trying to build a dynamic workflow (similar to what I did with n-step BADI in SRM5), I think I need to use the 'CREATE_PROCESS_LEVEL_CONFIG' but not sure what I beed to do really - a bit new to BRF...
I have a bespoke 'engine' for determining the recipients and their sequence / level, which I can retrieve by way of an FM, but I do not know then what to do with the returned table..
Any ideas ?
Martin can you let me know how I can get hold of acopy of your document please ?
Steve Ball

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EP - Senior Support Consultant II
SAP Active Global Support
Global Support Centre Ireland
**SDN Forum Moderator:
SAP Enterprise Portal: Application Integration
**SDN Universal Worklist Wiki:
http://wiki.sdn.sap.com/wiki/x/ehU

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I am working on SRM 7.0 and utilizing process controlled workflow to model my approval workflow scenario. Below are the steps that i have done but still i have not got the desired result. May be i am missing something which the forum members can let me know.
step 1: i have copied the standard function module /SAPSRM/WF_BRF_0EXP001 and made chnages in the code based on the logic to populate the ev_value.
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initialize
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EV_LENGTH = 1.
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get Context Container from BRF event
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no parameters provided .
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i have below question.
1) do we need to copy /SAPSRM/WF_BRF_0EXP001 or /SAPSRM/WF_BRF_0EXP000 for creating a custom FM expression.
2)what does the check box "Calculation of Parameter in Function Module/Badi/method" does
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Get purchasing document
*=======================================================================
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get context container from BRF event
lo_ctxt_provider = lo_wf_brf_event->get_context_provider( ).
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BRF Context Container Object not bound. No further execution possible.
    MESSAGE e090(/sapsrm/brf) INTO lv_msg.
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        EXIT.
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    ev_data_missing = /sapsrm/if_wf_rule_c=>brf_data_missing.
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iv_document_type = lv_document_type
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When u2018BUS2121u2019.
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ELSE.
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          ev_value        = c_blnk.
ENDIF.
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          ev_value        = c_blnk.
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ZEX_002= 0C_WF_B_FALSE
FYI-
You don't need to have expression ZEX_001 to check the result of ZEX_002, because both expressios resut is type 'B". you can directly attached the ZEX_002 to main Event ZEV_001
Regards,
Saravanan
Edited by: Saravanan Dharmaraj on Jun 23, 2010 12:25 PM

SRM 7.0 - Process controlled workflow

Hi,
Landscape - SRM 7.0 SP05
Workflow - Porcess controlled
Scenario - Self service procurement
Problem:
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