topic Difference between conversion and interface in Application Development and Automation Discussions

Difference between conversion and interface

Former Member — Wed, 29 Aug 2007 09:20:12 GMT

Hi Experts,

wht is the basic difference between conversion and interface? and why this two terms used in BDC's

Thanks in Advance

Re: Difference between conversion and interface

Former Member — Wed, 29 Aug 2007 09:37:54 GMT

conversion is used for one time loading. eg master data loading

interface is used for frequent loading. eg transactional data.

regards,

srinivas

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Re: Difference between conversion and interface

Former Member — Wed, 29 Aug 2007 09:44:51 GMT

convertion means uploading Flat file data into internaltable

interface means from itab to Dbase

Re: Difference between conversion and interface

Former Member — Wed, 29 Aug 2007 09:48:51 GMT

Hi Abdul,

Conversion

The legacy system may have a different representation for the data, from that of SAP. A conversion program basically aims at converting the data into a format that is acceptable for SAP. Conversion programs are for transferring data from the legacy system into the SAP system (and would involve all the data format conversion e.g. material number might be 10 digits in legacy system and would need to be converted to 18 characters before updating in SAP). Hence conversion would normally happen on or just before Go Live to transfer all up-to-date information into SAP. Thereon all transactions would be performed in SAP and no information would/should be required from legacy system, hence conversions end there.

Interface

Interface does the actual upload of the data into the SAP system through various channels

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Regards

Gokul

Re: Difference between conversion and interface

Former Member — Wed, 29 Aug 2007 10:03:37 GMT

one more thing in which scenario we use LSMW and Batch input program. i mean LSMW is used for conversions and Batch input programs are called as interfaces.

Re: Difference between conversion and interface

Former Member — Wed, 29 Aug 2007 10:15:44 GMT

suppose you need to load some master data like material master, you use conversion as it one time upload and if you need to load some transactional details like SO data, you use interfaces since that data needs to be loaded very frequently.

regards,

srinivas

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Re: Difference between conversion and interface

Former Member — Wed, 29 Aug 2007 10:21:42 GMT

generally we call bdc(call transaction , session method),lsmw ....as conversions..... and conversion programs

and bapis ...ale/idocs....edi ........as interface ....'

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