Final answer:
Ana should ensure the custom fields are saved and tracked by her version control system. She may need to review deployment settings or refresh the metadata index in her deployment tool to see the new fields in the commit changes page.
Step-by-step explanation:
If Ana, the admin, has created two new custom fields in the Contact object in dev1 but cannot find them in the metadata grid when trying to commit the changes, she should first ensure that she has saved the new fields correctly in the development environment. Additionally, Ana should check if the fields have been properly added to the version control system's tracking, as sometimes new metadata needs to be manually tracked depending on the version control system used. If these steps have been followed and the issue persists, Ana should review the deployment settings or consider refreshing the metadata index in her deployment tool, as the new fields might not yet be recognized by the system.