Worked on enhancing documentation clarity for SMS authentication coverage in the github/docs repository, focusing on aligning user-facing content with actual regional applicability. Updated the countries-where-sms-authentication-is-supported.md file to explicitly mention both regions and countries in the heading and introduction, reducing ambiguity for developers and customers planning regional rollouts. Utilized Markdown for documentation updates and Git for version control, ensuring precise change tracking and communication. Collaborated cross-functionally to verify coverage details and support deployment decisions. The work improved documentation accuracy, lowered potential support inquiries, and provided clearer guidance for both technical and non-technical stakeholders involved in SMS authentication deployments.