Customizing the logon screen does not work on PRD

Hi All,

I modified the login portal with the following steps:

1) Import the WAR file of the portal server in SAP NWDS

2) Copy  tc~sec~ume~logon~logic_api.jar file in WebContent\WEB-INF\lib

3) Configure the files:

• application-j2ee-engine.xml
• application.xml

4) And I modified the file logonPage.jsp (styles)

5) Change the Alias of the aplication for customizing login pages (ume.logon.application.ui_resources_alias)  property

With these steps I modified the login portal in Quality; but when I applied in production, making no changes.

I work with SAP Portal 7.3.

Hope you can help me.

Thanks in advance,

Andrea Daza