List of all exception and validation for AR Auto Invoice

Hi,

I am using ra_interface_lines_all for data loading and integration, after doing all the possible validation I push the data into ra_interface_line_all to create the invoice but most of the time experienced auto invoice it self doing further more validation on the inserted data and hence the record goes in exception, now what i want is to make a smart piece of code which cater the validations which auto invoice is doing so that no more record goes in exception.

Is there any document of list of all the validation done by auto invoice , so that i follow the same validations in my code.