Hi Ravikumar,
the standard key fields of DSO 0SD_O01 are 0DOC_NUMBER (VBELN) and 0S_ORD_ITM (POSNR). That's in your case the problem.
If you want to report the detailed level in respect to changes in sales doc. like material Number or Customer please add this fields to the DSO Key fields.
Please Check also the change document for this Sales doc. on R/3 side.
PLease also Check the PSA-table 2LIS_11_VAITM for the Sales doc. Here you can find the correct Sales Doc. History.
By the Way (See startroutine) in 0SD_O01 are only Sales docs. from categ. C (orders) and I (orders with no Price).
best regards,
michael