MM_MATBEL archiving

Dear Experts,

I have a requirement to archive MKPF, MSEG tables. After running the write program, the log is displaying the document numbers that are archived. But some documents are missing. It is not showing any error messages. What might be the reson for it? Im not clear about the requirement to archive MKPF, MSEG. Please help me out.

Thanks in advance.

Regards,

Shanthi