The following example shows how to create a project using the msi lifecycle to build the matrix x86 and x64 platforms for english and german
<project>
...
<packaging>msi</packaging>
<properties>
<wix.locales>1033:en-US,1031:de-DE;en-US</wix.locales>
</properties>
<build>
<plugins>
<plugin>
<groupId>com.github.wix-maven</groupId>
<artifactId>wix-maven-plugin</artifactId>
<extensions>true</extensions>
<configuration>
<platforms>
<arch>x86</arch>
<arch>x64</arch>
</platforms>
</configuration>
</plugin>
Using wix extensions, add as a dependency.
<properties>
<wix.groupId>org.wixtoolset</wix.groupId>
<wix.version>3.7</wix.version>
</properties>
<dependencies>
<dependency>
<groupId>${wix.groupId}</groupId>
<artifactId>wix-toolset</artifactId>
<version>${wix.version}</version>
<classifier>WixNetFxExtension</classifier>
<scope>provided</scope>
<type>wixext</type>
</dependency>
<dependency>
<groupId>${wix.groupId}</groupId>
<artifactId>wix-toolset</artifactId>
<version>${wix.version}</version>
<classifier>WixUtilExtension</classifier>
<scope>provided</scope>
<type>wixext</type>
</dependency>
</dependencies>