How to debug a function module that is written to extend a datasource

Hi all -
this is BW related question.
I have a datasource that I extended but instead of writing the code in the user exit, I created a function group and a function module to populate the custom fields. My problem is - I want to debug the function module and when I do that, I have to give datasource, infosource and update mode as input parameters. There is no data in the internal table C_T_DATA, how can I debug to get data into this table.
please let me know.
thanks,
Sabrina.

Keep the Break point Before Updating.
just click on the table c_t_data .or choose the internal table and say CTRL+F4, you can internal table content
you can find change, append ,delete options.
just select the row and click append they one blank row will appear. just add entries to that , and enter
the record will be appended, do in the same way if you need more records to add...
regards
vijay

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How to debug LAE function modules

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Text
ATP information
Functionality
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regards

How to debug a function module that is written to extend a datasource

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