If a customization uses a JAR file, then you will need to remove the customization using the Gateway configuration utility only. Otherwise, you can delete it using the Gateway user interface.
Prerequisites
Ensure the following:
- The bin folder of the supported Java JDK is included in the PATH.
- If there are other JDK bin folders in the PATH, it should be listed first.
- Sign in to WebLogic as an administrator and stop the Gateway domain before removing customizations.
- If you are using a non-Microsoft Windows system, type the following command for execute privileges:chmod 755 Gateway-Configuration.sh 
Procedure
To remove customization files using the Gateway configuration utility:
- Navigate to any of the following folder locations:- <Primavera_Gateway_Home>/gateway/app/utilities folderwhere <Primavera_Gateway_Home> is the installed location of Gateway. OR 
- <Gateway Download Folder>/GenericInstaller/GatewayUtility folder
 
- <Primavera_Gateway_Home>/gateway/app/utilities folder
- Run the following command:- For Windows installations, run Gateway-Configuration.bat
- For Linux and Solaris installations, run ./Gateway-Configuration.sh
 
- In the Primavera Gateway Configuration Utility dialog box:- Select Manage Customizations.Note: Select Next on each screen to advance to the next step. 
- In the Select Gateway ear file (gateway.ear) location field, select Browse to locate the .ear file in the <Primavera_Gateway_Home>/gateway/app/utilities folder.
- In the Installed Gateway Customizations section, select the Remove check box for the customization you want to remove.
- Enter the following database connection details:- DBA User Name: Enter the name of the database administrator.
- DBA Password: Enter the password for the database administrator.
- Database Host: Enter the host name of the Oracle database on which you will be updating the Primavera Gateway database.
- Database Host Port: Enter the port number of the Oracle database.
- Database Name: Enter the Gateway database name and select any of the following methods to connect to the database.
- SID: Enter the SID of the Oracle database.
- Service: Enter the service name of the Oracle database.
- Schema Owner: Enter the name of Gateway schema owner. (This name should match the name that was entered when you installed Primavera Gateway.)
- Schema Password: Enter the password for the schema owner.
- Select Test Connection. Modify the applicable fields if the connection fails and repeat as necessary.
- Select Update. The status field displays a success message.
 
- Select Finish to exit the configuration utility.
 
- Select Manage Customizations.