# Accounting Period is Closed - No Changes Allowed (Zuora Error)

This error can appear when processing refunds or cancellations which are backdated to a previous accounting period. This is a Zuora Finance-related error. To rectify this, you will need to speak to your Zuora admin to discuss your options.

In the Accounting Rules section, you should find a rule called "Allow Subscription and Amendments to be created in a closed Accounting Period" which needs to be set to Yes.

You can read more about this in [Zuora's Knowledge Center](https://knowledgecenter.zuora.com/Zuora_Payments/Zuora_Finance/D_Finance_Settings/D_Configure_Accounting_Rules).


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