These rules apply when you create your own variables in a batch report layout file:
Each variable begins with a name of up to 10 characters, preceded by the batch variable character "#".
The format is specified by 1 to 40 format characters: N for numeric or X for alphanumeric characters. You cannot mix N and X.
You can write several batch variables on the same line. Example:
#MyVar1 NNNN #MyVar2 XXX #MyVar3 NN
Additional examples of user-defined batch variables:
#MyName XXXXXXXXXXXX
#MyCode XXX