The marketing authorisation can be converted into a standard marketing authorisation (no longer subject to specific obligations) once the marketing authorisation holder fulfils the obligations imposed and the complete data confirm that the medicine's benefits continue to outweigh its risks. Initially, this is valid for 5 years. It can then be renewed for unlimited validity.
The 5 years applied to a CMA as above, not MA.
MA has unlimited validity (unless some issue emerge from long term use) and same for CMA after passing the 5 year point.
Details matter you know, especially when speaking with great gusto and confidence about thinks one doesn't know about.