# Do We Need To Know All Tables and Fields inR/3

We are in the initial phase of BW development(We don't have Functional consltant with us).Our source System is R/3. According to Reporting requirement We have identified certain DataSources in Business Content Which have basic Characteristics and Key Figures which we require in report.

but still lot of fields are there in R/3 which we are not finding in Datasources ?. My question is Do we need to know for each Characteristic and key figure the base table in R/3 and corresponding field name in R/3.

We found certain fields are common in 4 - 5 Tables in R/3,So how do we know that certain field is coming from certain table only.

Here i want to ask, the Business content datasources in which we have certain chars and key figures which we require. do we need to know from which table these are comming or connected to in R/3??.

So the bottom line is ,do we need to see and analyse for each BEx report. what the corresponding field and table in R/3 is.

I would award points to rational answers.

regards

Srini----