Vessel Code Format Control: First 6 Characters of Vessel Name

We would like to configure auto generate the vessel code by Vessel Code Format Control: First 6 characters/numeric of Vessel Name, this will ease for Chartering team to avoid create the wrong vessel code format.
Our vessel code format right now enter manually with first 6 chars/numeric. Eg, BEI LUN 16 = BEILUN | 21 Happy = 21HAPP but sometime chartering will enter wrong format. Thus we suggest to have this auto generate of vessel code configuration to avoid user enter wrong format.

Impact of wrong vessel code created:
If invoice/ journal posted, need to reverse all invoices in order to proceed for new vessel code creation and re-assign to TC contract, Estimate and Voyage management.