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BDT in contract master

Dear All,

We are trying to enhance account master(BCA_CN_ACCT_01) using BDT.

I could successfully do the customization so as to add a new tab(screen) in it.

I was analyzing the standard code to see how the code is implemented so that i could link my data in a custom table.

All the coding is done in Function Modules(most of them don't have parameters, just using global variables in top include).

For this example, SAP has structured it's code in many Function Groups(one for Screen layer, Object layer, API layer & DB layer).

I couldn't figure out how the data is exchanged(passed) from on FG to another without any parameters in the actual function modules.

Your expert inputs are appreciated. Thank You!!!

Thanks, Deni

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