PersoNum can proceed a maximum of 99'999'999 records per file. This should be pretty enough for your next mailing.
A single data record line may not exceed a length of 1 MB (= 1'048'576 characters), no matter how much data fields it contains. If only empty data fields are contained, this gives a maximum of 349'525 data fields.
Number values in the numbering machines cannot be below Null and cannot exceed 999'999'999. The start value can be between 1 and 999'999, the change value between -99'999 and 999'999.