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17 lines
599 B
17 lines
599 B
**Context**
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In Point Of Sale module, the front-end works offline, so all datas are
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loaded at the beginning.
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At the end of the session, if user doesn't close the window, it will be
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possible to create new PoS order on a closed session, generating errors.
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**Functionality**
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This module prevent the possility to create a PoS order via the front
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end PoS UI, when session is closed.
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The session state is checked every minute by default. If the state of the
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session is not opened, a blocking pop up is displayed, and user has to
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open a new session.
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.. figure:: ../static/description/error_message.png
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