I'm not aware of any report that does this.

If you want to have a go at generating such a report, some basic SQL to generate a listing of templates and their included products is shown below.

Alternatively, if you want fund development of a report, please let us know at support[at]openvpms[dot]com. Please consider contributing it back to the project so other users can benefit.

-Tim

select template.entity_id template_id,
       template.name template_name,
       template.active template_active,
       product.entity_id product_id,
       product.name product_name,
       product.active product_active
from entities template
join entity_links includes
    on includes.source_id = template.entity_id
        and includes.arch_short_name = 'entityLink.productIncludes'
join entities product
    on product.entity_id = includes.target_id
where template.arch_short_name = 'product.template'
    order by template.name, template.entity_id, product.name, product.entity_id