Do I need to transfer my marriage visa from my old passport to my new passport before renewing my visa in Thailand?

The user needs to navigate the situation where their marriage visa is in an old passport that is still valid, but they have obtained a new passport due to the old one being full. While one comment suggests that you cannot transfer a visa, it highlights the need to visit immigration to have the visa or extension moved to the new passport. Another user confirms a similar experience, noting that the process is straightforward.