Overview
========

In most cases the Person-related data already lives in a (e.g. POS)
SQL database and may be queried directly by Rattail.  This means you
may view that data directly in the web app.

All of the Person-related records may also be *imported* into Rattail
from other systems, and this is usually the best place to get started;
see :doc:`importing`.

Once the data lives in Rattail you obviously may view it within the
web app (so, reading from Rattail DB instead of POS DB now).  But this
also sets the stage for other features which require such data to be
in place; for instance :doc:`../../custorders/index`.

You also may want to allow editing for some or perhaps all aspects;
see :doc:`editing`.

The data (and any changes made via editing, if applicable) may also be
exported back to the source and/or other systems; see
:doc:`exporting`.

Sometimes you need to process a "set" of data, for instance taking an
export file from one system and then preparing it for import to
another system.  This is a broad topic; for a starting point see
:doc:`batches`.

Duplicate records are an ongoing problem in many systems, when it
comes to Person-related data.  Rattail does allow merging of 2 records
but it can be tricky; see :doc:`merging`.