bdc session

hi experts,

in call transaction method iam uploading the data.suppose vendor details.when i run

i got some errors ythat we can find by using msgcoll.in that i got 1,2,recrd is successfull and 3rd one is failed 4th,5th is success.now how can i handle this error.pls give me indetail. thanx in advance.

regards,

loki.