Maven archetype - how to generate artifactId based on other property value?

Question

I'm wondering if it's possible to force the artifactId property to match a specific pattern which includes a value from another property. For example, in my archetype-metadata.xml I have:

<requiredProperty key="customerId"/>

and I want the artifactId to always be in a form of <customerId>-custom-api. I tried to add:

<requiredProperty key="artifactId">
  <defaultValue>${customerId}-custom-api</defaultValue>
</requiredProperty>

but it didn't really work, since the order in which Maven resolves these values is apparently not guaranteed. Are there any other options?