In order to increase the number of characters on your serial numbers, you need to make a small adjustment to your data types.

It is the SER data type that governs the serial number character limit, changing this will allow you to increase or decrease the field as you need.

Please follow the below steps to make to adjustments. 

1. Got to Development > Data and Parameters > Data Types
2. Select the SER type code
3. Change the length of the serial number to what you require
4. Remember to change the Adonix format to the same length as well
5. Save and validate the changes made.