Can we run the customer and supplier ageing reports by transaction currency?

We can run a report by currency using Accounts receivable ageing report, adilam.

Let me guide you how:

1. Click the Reports tab.
2. Enter and select Accounts receivable ageing detail.
3. Click the Customise button.
4. Select the Rows/Columns drop-down and then click Change columns.
5. Tick the Currency field.
6. Click Run report.

As for the supplier side, we can run the Supplier Balance Detail report and then add the Currency field.

Also, you can check this reference for some FAQs about Multi-Currency: Multi-currency FAQ.

I'll be around if you have concerns with Multi-Currency. Keep safe!