Your User ID becomes official and permanent once your SSS online registration is approved. However, SSS may grant some users' requests to reset or change their User IDs, provided they have a compelling reason to make such requests. If you think it's essential (e.g., the User ID is vulgar, incredibly confusing, etc.) to change your designated User ID, you may send a formal letter to the nearest SSS branch or onlineserviceassistance@sss.gov.ph, stating the reason for the request, and together with scanned copies of either your UMID card or any two (2) valid IDs showing your photo and signature.