Configuring the default date and time formats

日付書式　Date Format を変更するにはやはり再コンパイルが必要

やはり　YYYY/MM/DD に関連した不具合があるため、 DD-MM-YYYY にしようとしたが
Openbravo.properties の NLS_DATE_FORMAT の変更だけでは対応できない。

Configuring the default date and time formats

To change the default Openbravo ERP date format launch the setup tool inside the config/setup-tool directory.

Once all the changes are done, recompile and deploy Openbravo ERP:

ant compile.complete 

ant war 

ant deploy 

Configuring the default numbering format

You can modify the default numbering format by editing the Format.xml file inside config directory. You should have decimal="." grouping="," for every category. Once this is done you will have to restart Tomcat and the reports will show as you wish.

http://wiki.openbravo.com/wiki/Openbravo_ERP_installation#Configuring_the_default_date_and_time_formats