## Documentation Index

Access the complete documentation index at:
https://www.zoho.com/ca/books/kb/llms.txt

Use this file to discover all available documentation pages before proceeding.

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# Why can’t I create transaction rules between accounts with different foreign currencies?

You cannot create transaction rules between two accounts, which have different foreign currencies. This is because Zoho Books maintains exchange rates only between a base currency and a foreign currency and not between two foreign currencies. 

![ ](/books/kb/images/banking/multiple-fc-error.png)

 So, when you create a new transaction rule for a bank account, the currency of the account chosen under the **Account** dropdown must either have the _same base currency_ as your organization or the _same foreign currency_ of the account for which you are creating the transaction rule. You can learn more about [transaction rules](/books/help/banking/transaction-rules.html) from our help document.