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*************
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Configuration
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*************
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The *Currency Module* uses some settings from the ``[currency]`` section of the
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:doc:`configuration file <trytond:topics/configuration>`.
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.. _config-currency.rate_decimal:
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``rate_decimal``
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=================
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The ``rate_decimal`` setting defines how many decimal places are used when
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storing currencies' `Rates <model-currency.currency.rate>`.
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.. warning::
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Once the database has been created you cannot reduce this value, doing so
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will break your system's data integrity.
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Also if you want to increase this value you must also manually change it in
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the database *IR Configuration*.
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The default value is: ``6``
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