Sandeep check this one already.He s

Sandeep check this one already.
He suggested to user 2 way.
1. If you want to set B1 in TZ647, you should be channge table setup in T6696 also.
2.Remove B1 form TZ647 and don't change anything in T6669 als
Afterthat, I told K.Kookai, she choosed choice 2.
But before remove, she want to know "What is meaning of "B1"?" And "Why we can remove B1? System doesn't impact on it?