: Anniversary boxes have a strict expiration date noted on the item; if the event window has closed, the box cannot be opened.
Secret codes can only be claimed once per game account. Check your mailbox log to ensure you did not already open the box. To help narrow down any issues, let me know: What error message are you seeing? What gaming platform (iOS, Android, or PC) are you using? What game server (Global or Asia) is your account on? Share public link
: Crucial for breaking character level caps.
How to Use Coupon Codes - The Seven Deadly Sins: Grand Cross 7ds grand cross 35 anniversary box code work
: Go to the 1-Drop tab and tap on the locked 3.5 Anniversary Box.
Tap the icon (represented by the cogwheel or smartphone icon) in the bottom right corner. Select Misc. (Miscellaneous). Tap Coupons . Select the relevant Event Coupon banner. Enter the code 7DS35TH and confirm to claim your rewards. Method 2: Netmarble Coupon Website (iOS & All Platforms)
While the boxes remain in your inventory, the event items or specific "coupon" codes (like THE1ULTIMATE : Anniversary boxes have a strict expiration date
If you prefer to redeem on a desktop, you can use the official Netmarble coupon website .
Because the 3.5 Anniversary event utilized an in-game chest menu, the redemption process depends strictly on where you are trying to input the text. Method 1: Directly inside the Inventory (Mobile & PC)
Find your by going to your in-game profile/player info section and copying the long string of numbers. Open the Netmarble 7DS Coupon Page via your browser. To help narrow down any issues, let me
For the most up-to-date codes during the 2026 celebrations, it is always best to check the official 7DS Grand Cross forum. If you are looking for more, I can: List current, actively valid codes for 2026.
Help you decide which character to pick from the Ultimate Jump Box.