Does anyone know what is the "best" way to change the sequence ID when processing Electronic Bank Payments? we often come into issues where the bacth needs to be reprocessed, but the bank generates an error because we already used the same 4 digit ID. Ideally I'd like the sequence_id to get a +1 every time (when doing roll backs)

The sequence ID issue is super annoying. You can manually edit it in the Electronic Payment Processing page before generating the file - there's usually a sequence field you can bump up, but NetSuite doesn't auto-increment on rollbacks unfortunately. Some teams keep a custom field on the bank account to track the next sequence number manually. Or build a simple script that auto-increments the sequence when you process payments. Are you using ACH or wire transfers? The approach might differ slightly.