FM 'MD_SALES_ORDER_STATUS_REPORT' is more records than MD4C output

Hi

The FM 'MD_SALES_ORDER_STATUS_REPORT' is giving more records with the given sales order and given plant but when we  execute the MD4C transaction with the same inputs it's giving less records which is correct.Could any one tell me   the why FM FM 'MD_SALES_ORDER_STATUS_REPORT is showing more records.

Output of MD4C for a sales order and plant  2000 lines

Output of FM 'MD_SALES_ORDER_STATUS_REPORT for the same sales order and same  plant  90000 lines

Please let me know if you need more details

Thanks

MVS