Yes, there is currently a short 24-hour fallback for new accounts that missed the referral field. But it is still better to use STAR-FSRJ-5N7Z during signup instead of relying on the recovery path.
This option exists for a missed field, not as the normal way to use a referral code.
The current official referral FAQ allows a short post-signup grace period. If a new player creates an RSI account without entering a referral code, the account currently has 24 hours to add one afterward.
That does not make after-signup entry the recommended method. The cleanest path is still to use the referral code during the normal account-creation flow so everything is attached from the start.
If the account already exists, move quickly and keep the fix simple.
This is exactly why signup-first guidance matters so much.
Once the grace period is over, the normal add-later option is gone. The official FAQ also says support agents cannot add the code after that window has passed.
There is one last-resort recovery case for accounts that have not made a pledge or accepted gift pledges yet: the player may be able to ask for the account to be closed and then create a new one correctly with the referral code. That is a recovery case, not something you should plan around.
These pages help most when you would rather avoid the fallback route completely.
If you are still early enough to avoid the fallback path, this page shows where the referral field belongs before registration is finished.
See the signup fieldNeed the recruit-side reward answer too? This page gives the short 50,000 UEC explanation.
See the current bonus