# validate\_amount

{% columns %}
{% column width="33%" %}
Amount Validation
{% endcolumn %}

{% column %}
**Description**

The transaction amount is validated against configuration to make sure that the amount is within the maximum amount. For purchase, 0 amount is not allowed.

\
**Configuration Parameters**

`Merchant.Currency.MaxPurchaseAmount` - the transaction amount + tip + tax should not exceed Merchant.Currency.MaxPurchaseAmount, else the transaction is declined.
{% endcolumn %}
{% endcolumns %}

\---


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