Top Law Schools

What is it? Harvard is asking me to include it in my withdrawal snail mail letter.

Note: I read somewhere else that it is not your LSAC #. So, if it is, go easy on me!

The only thing I could find was the date I signed up for the credintial assembly service (and the LSAC account #)
Then again if you are writting a withdrawl letter....don't be too concerned