Indicative rates, not an offer.
The convertible mark (BAM) is pegged to the euro at a fixed rate, so euros are widely accepted and euro–mark is the most common exchange; Serbian dinars and US dollars are also traded. Sarajevo and Banja Luka have the most offers, followed by Tuzla, Mostar and Zenica.
Exchange offices (mjenjačnica) operate in city centres, and banks exchange currency at their branches. P2P offers help you swap USDT or USDC for marks or arrange a transfer.
Below are exchange offices from open sources.