Sales Data is getting loaded with ebs_Demand_class_code as '0'

Hi,

After running collections, there are some combinations created in mdp_matrix and sales_data table with ebs_demand_class_code='0'. But when I verified the corresponding orders in EBS, the demand class code is left as NULL. so will this cause the collections to load the sales_data with EBS_Demand_class_code  as '0'?

The entries that I am seeing in t_src_sales_tmpl is EBS_DEMAND_CLASS_SR_PK = '-777', EBS_DEMAND_CLASS_CODE = '0'

can someone help me out in this?

Thanks,

Dorristas