Hi Gergö 

The field FNIEDITIONYEAR seems to be created in the database (over DatabaseUpgradeTool) as a NUMBER field. MetadataConfig.xml only decides if/when/how the field gets rendered, but the basic type was already decided in the database upon field creation.

So you need to verify with whoever created the field for you. They probably relied on docs.sdl.com/.../customizing-metadata-fields-and-values

If you want to know the type of your fields (or on which level and card types they are), you can use the PowerShell ISHRemote module over the web services... Look in the demo script and recording for "Get-IshTypeFieldDefinition | Out-GridView", see community.sdl.com/.../automating-on-sdl-tridion-docs-tds2019---business-process-examples

Best wishes,
Dave

Thank you, Dave! I'll take a look on your suggestion.

Hello Dave!

I was able to retrieve the field configuration from the DB as you've suggested:
<field element="FNIEDITIONYEAR" issystem="false" isbasic="true" ismandatory="false" isindexable="true">
    <label>Edition Year</label>
    <description>Edition Year</description>
    <typenumber ismultivalue="false" />
</field>

Thank you for tour help!

Now that I know that it is a number type, is there a way to turn off the automatic formatting for this field on the Content Manager UI? Currently a decimal point is inserted after every third number. It does not break anything, it just looks out of place as a numeric representation of a year.