Worked on the subscriptions-project/swg-js repository to improve code quality and user-facing clarity by aligning terminology in the getProductIDFromPageConfig_ function. Focused on replacing all instances of 'publisher ID' with 'product ID' to ensure consistency across documentation, error messages, and test cases. This update reduced potential confusion for users and streamlined support by clarifying the product identification process. The work involved careful refactoring and comprehensive updates to related tests, leveraging skills in JavaScript, TypeScript, and documentation. No new features were introduced, but the changes enhanced maintainability and reduced the risk of terminology drift within the product ID retrieval flow.