Dear Sir,

I would like to know whether the following sentences are acceptable or correct in usage. I am wondering whether I can insert "out" after "trace" to mean "discover by searching or researching evidence". How about the second sentence? Is there anything wrong? If there are unacceptable, please re-construct them.

1. Mr. Chong expressed the need for a work order number in order to trace out the lead to the requestor.

2. It looks as if the work order number could be traceable in the e-mails.

Thank you.