Can we have a check number with characters?

Summary

Can we have a check number with characters?

Content

We are going to import AP Payment- Checks from multiples system. We are going to use Oracle Payment just to import payment and use Supplier Portal and supplier will be able to see their invoices and Payment.

I don't want to configure all the multiples Banks, Bank branches and bank accounts. I want to configure only one Dummy Bank/Bank Account and import the check number from different system.

At the moment that we import the check from multiples systems, there is a possibility to have the same check number imported from different bank. I was thinking to create a check number with some logic like date_checknumber, or some logic.