An installed module is only half the work. Most OpenCart extensions have dozens of parameters, and without proper configuration they either fail to deliver the expected result or conflict with the theme and other modules.
We configure OpenCart and ocStore modules for specific business requirements. When non-standard behaviour is needed beyond the out-of-the-box settings, we make targeted code edits or write an additional OCMOD patch.
When standard settings are insufficient we perform customisation: template changes, new field additions, display logic modification. All changes are documented so future updates do not revert them.