Bank Key (Max Characters: Fiori vs ECC GUI)

Hi S/4 HANA Experts,

I would like to inquire if you already have encountered the same error (attached) while creating Bank in Fiori (Manage Bank - Basic).

In old (ECC) GUI, the maximum characters of Bank Key is 15 characters while in Fiori, it's just 11.

Appreciate your help to answer this query. By the way, I'm using S/4 HANA 1610.