In your custom Extension find a file *backoffice-config.xml, there you can write ,if you donĀ“t already find it , something like this for your type:
<context type="Product" component="create-wizard">
<wz:flow xmlns:wz="http://www.hybris.com/cockpitng/config/wizard-config" Id="ProductWizard" title="create.product.title">
<wz:prepare id="productPrepare">
<wz:initialize property="newProduct" type="Product"/>
<wz:assign property="newProduct.code" value="ctx.code"/>
</wz:prepare>
<wz:step Id="step1" label="create.product.essential.label" sublabel="create.product.essential.sublabel">
<wz:info Id="step1.intro" position="top" label="create.product.essential.intro" />
<wz:content Id="step1.content">
<wz:property-list root="newProduct">
<wz:property qualifier="code" type="java.lang.String"/>
<wz:property qualifier="catalogVersion"/>
</wz:property-list>
</wz:content>
<wz:navigation Id="step1.navigation">
<wz:cancel/>
<wz:next visible="!#empty(newProduct.code) and newProduct.catalogVersion != null"/>
<wz:done visible="!#empty(newProduct.code) and newProduct.catalogVersion != null">
<wz:save property="newProduct"/>
</wz:done>
</wz:navigation>
</wz:step>
...
or just to delete the property qualifier that you want.
For more infos please see https://help.hybris.com/6.7.0/hcd/8bd6b110866910149666f5b05fb95681.html