Lookup - Error Msg

hi all,



good day!

i have dataflowtask_a and dataflowtask_b

i also have a send mail task



inside dtf_a i have a very long transformation which has 10 lookup task

each lookup task is configured to have an error output. should every lookup

encountered an error, the error output of the

lookup sends a unique error msg per lookup and is appended to a

string variable errorlst. Should dtf-a encounter an error it sets the variable

@nogo=true.



In the control flow if @nogo=false it proceeds to dtf_b otherwise it proceeds to

sendmail the consolidate error message.



Questions:

1. I only want to have one unique error message sent per lookup. if there are two

lookup error it should send only one message

2. the message should look like this: "error lookup1 : error lookup2 :and so soon"



how can i do this



thanks!

joey

.