The purpose of conversion tables is to convert a given value in the data received/sent to another value in the data going in/out.
A very common example of this is conversion between unit of measure values (e.g. colli to/from cl or piece to/from pce). Another example could be country codes indicated differently from company to company. Description of how to set up new conversion tables in can be found in the Conversions section.
When a conversion table is available, different values can be entered for different partners, and it also supports that one partner uses different values for the same information.
For a run-through, please view the demo in webinar Link for Developers chapter 5 - Conversion tables.