Does anyone know if netsuite has fixed the credit card multi currency issue? For example, I have a USD base currency subsidiary, but that subsidiary has a credit card issued in AUD. When I try to create a credit card account, Netsuite greys out the currency dropdown. It also seems like within the match bank data it is similar. I've read that you can create the account in another subsidiary in the other currency (AUD), and then move the account back to the original (USD) subsidiary and Netsuite will retain the AUD on the account. That seems like a crazy workaround

Unfortunately, it's still a common limitation in NetSuite. The workaround you mentioned does work, but it's far from ideal. I've helped clients implement practical solutions for multi-currency banking and credit card setups in NetSuite feel free to DM me if you'd like me to review your configuration and suggest the best approach. @Alex Sehlhorst