Deleting Batch Records (PP-PI) 
Use
You can use this procedure to physically delete header records of batch records from the R/3 database.
To do so, you perform a background job for program PPPI_MCHP_DELETE Delete Batch Record. You can schedule the job as follows:
After the header records have been deleted, you can no longer access the archive files from within the R/3 System.
Prerequisites
Procedure
A dialog box appears from which you can call up the activities Define Selection Variant and Define Background Job.
For more information on how to proceed, see Customizing for Batch Records, section Define Background Jobs for Processing.