Data source enhancement thru function module

Folks,
I am trying to figure relation between data source enhancement, package, function module etc?
I see a function module where enhancement is done. when I go and try to see master data exit EXIT_SAPLRSAP_0002 ... I see include but I do not see reference of function module in this include?
All these codes are so simple... but I am struggling to figure out all these relation RSAP0001, exit_saplrsap* - include inside and function module attached?
Can somebody give very simple connection for all these components?
Thanks,
-SM

Hi,
All these codes are so simple... but I am struggling to figure out all these relation RSAP0001, exit_saplrsap - include inside and* function module attached?
Please note that for enhancing certain standard objects for meet customer needs, SAP provides different customer exits where we can code as per our requirements.
These customer exits starting with EXIT********* will be grouped by Enhancements e.g. RSAP0001
Thanks for your response. In RS02 it is clear that we can mention function module name for data source - that is good for generic extraction. But what do we do when we are enhancing SAP extractor?
When you want to enhance SAP extractors, you go for customer exits.
EXIT_SAPLRSAP_001              for Transactional datasources
EXIT_SAPLRSAP_002              for Master datasources
EXIT_SAPLRSAP_003              for Text datasources
EXIT_SAPLRSAP_004              for Hierarchy datasources
in se37 screen in table tab - sometime we see extract structure - that will establish which functional being called for which data source, but in my case - I do not see anything in table tab?
If your datasource is function module based, then the function module which is mentioned in RSO2 for your datasource would surely have e_t_data in tables tab with its associated type.
Only if the datasource is standard one and is processed by function module e.g. 2lis_18_i0notif which is processed by MCEX_BW_LO_API function module, these would not have associated type mentioned for them. To get their structure, you can go to RSA5/ RSA6

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Hi all!
I have a requirement like I have to enhance my Generic Data source.
Let me make it clear!
I have 10 field in R/3 which I am able to get into extract structure using Generic Data Source on the corresponding Table.
I have another field on my extract structure, say ZEXMFLD1 which is updated by a function module ZZ_FUNC_MODULE_SAMPLE.
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Hi Sri,
You can enhance generic datasources also.
For that you have to use below function modules based on your datasource type.
EXIT_SAPLRSAP_001 - Transactiona data
EXIT_SAPLRSAP_002 - Master
EXIT_SAPLRSAP_003 - text
EXIT_SAPLRSAP_004 - Hier
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call you Function module - CALL 'ZZ_FUNC_MODULE_SAMPLE'.
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if you add your
bold
IF sy-subrc <> 0.
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bold
than the sy-subrc may be equal and than your CLOSE CURSOR s_cursor. will have no effect
it work for me hope it will for u
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Salah
Edited by: idrissi salaheddine on Jan 19, 2012 12:24 PM

Error in generic data source by using Function Module

Hi Guru's,
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UNITS FIELD "OWAER" FOR FIELD "WOGBTR" OF DATA SOURCE XXX
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Edited by: vijay m on Feb 1, 2008 5:03 PM

Khaja,
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Edited by: Debjit_Singha_86 on Jul 23, 2011 8:35 AM

Try using following piece of code;
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[Data Source Enhancement|Data source Enhancement Code Samples;
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https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/59069d90-0201-0010-fd81-d5e11994d8b5
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Data source enhancement thru function module

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