Direct Access prevents saving of an extension if the total of all extensions exceed 72 months.
However, if a member is involuntarily retained due to medical or otherwise, then the error should not occur. We've submitted a change request allow the extension to be saved and approved if the obligation type "RET" is selected (retention).
Please contact PPC (Customer Care) if you encounter this error. PPC will have to intervene manually in these situations until the reprogramming is completed.