how to post the entries in to vahdr or vaitm data source in ecc?

hi,

i have created the logistic data source for sales 2lis_vahdr ,2lis_vaitm i have created everything in dev server and initiated the delta also,it reflects in RSA7,now i moved to qas ,now i need to create some entries into the these data source to observe the delta load is updating in RSA7 or not.so please tell me that how to post the data into those data source means creation of sales header and item date.