Building Idoc.

Hello Gurus,

I wanted to know how to build and IDOC before I send the values using IDOC to SAP to post AR Customer Invoice.

The scenario is, I have a file with Billing details received from Legacy system. I wanted to build the IDOC with certain validations and substitutions before I place the values into IDOC structure. Can I do validations and substitutions during building the IDOC, if so how and could you please explain the steps. Basically wanted to "Preprocess" the file received.

Your guidance will be highly appreciated.

Thanks,

Sam.