Oh My Mahjong Promo Codes & Coupons February 2026

Promo codes at Oh My Mahjong often fail at checkout because they may be expired, not valid for your specific cart items, or restricted to first-time buyers. Many codes last only a few months before expiring, which is why you might see "Discount code is invalid or expired" errors.

Oh My Mahjong typically uses influencer-specific codes (shared via social media), offering mostly 10% discounts that expire relatively quickly. The most reliable codes are recent ones like PTTMAHJ10.

If your code isn't working, try these troubleshooting steps:

1. Copy the exact code from a reliable source like Wethrift or Knoji
2. At checkout, paste the code into the "coupon code" box before payment
3. Remove any non-qualifying items (like clearance products) from your cart
4. Try using an incognito browser window to mimic a first purchase
5. Contact support@ohmymahjong.com if you're still having issues

Pro tip: Always verify code recency on coupon sites—and shop during flash sales when new 10% codes are typically released via social media.

To apply a promo code on Oh My Mahjong:

1. Add your desired mahjong sets or tables to your cart
2. Proceed to checkout
3. Scroll to the "Promo Code" field under the order summary
4. Paste your code (in uppercase) like MAHJWITHALI or THEMAHJCOLLECTIVE
5. Click "Apply" before selecting your payment method

If you see an error like "Code not valid," the code may be expired (many last only 2-5 months), or your cart might contain excluded items like bundles. Most Oh My Mahjong codes have restrictions such as single-use per account and minimum order requirements (often $50).

If you're having trouble, try clearing your cookies or using the desktop site instead of mobile, as some shoppers report glitches with the mobile checkout.

Pro tip: Copy-paste from verified coupon sites and test PTTMAHJ10 first—it's often the freshest code for an instant 10% discount.

When Oh My Mahjong shows an "invalid or expired" error, it typically means one of three things: the code has expired (common with codes older than 3 months), your cart contains items excluded from the promotion, or the code is one-time-use per account and you've used it before.

Oh My Mahjong rotates their influencer codes frequently, and many codes are only valid for full-price mahjong tables and mats, not accessories. Some codes are also restricted to first-time purchases only.

If you encounter this error, try these steps:

1. Check the code's age on a coupon site like Wethrift
2. Edit your cart to remove any items that might not qualify
3. Try a recently verified code like NWAMAHJONGMAMA (10% off)
4. Retry your purchase in a new browser or incognito window

Pro tip: Always cross-check "last used" dates on coupon sites before checkout—if your code isn't working, switch to LYNNCOOPER for a reliable 10% discount on most items.

Yes, there are active storewide codes for Oh My Mahjong, but they typically offer 10% off rather than 20%. Currently, codes like PTTMAHJ10 and LYNNCOOPER provide 10% off sitewide purchases. The 20% codes you mentioned (like MONROE20) have expired and are no longer working.

To use a working promo code:

1. Visit ohmymahjong.com and browse their collections
2. Add your desired items to your cart
3. Proceed to checkout
4. Enter the promo code in the designated field
5. Click "Apply" to see your discount

These codes typically work on non-sale, full-price items. Be aware that most Oh My Mahjong codes are account-specific, may require a minimum purchase (around $75), and are valid for U.S. orders only.

Pro tip: Try codes verified on coupon sites like MAHJONGANNA for a storewide 10% discount—test a couple of different codes before finalizing your purchase to ensure you get the best savings.

In the past month, Oh My Mahjong has launched 17 new promo coupons for shopper discounts. This indicates that Oh My Mahjong provides regular opportunities for customers to save money on their purchases.

On average, Oh My Mahjong provides 2.8 discount coupons each month. Based on historical data, the average time between Oh My Mahjong coupon releases is approximately 11 days. However, this is subject to change and may depend on various factors such as seasonal promotions, product launches, or other marketing initiatives. To stay informed about upcoming discounts and promotions, we recommend checking Oh My Mahjong website regularly, subscribing to their email newsletter, and following them on social media.

Oh My Mahjong is offering 24 working store-wide codes, and they are also offering 28 additional discount codes with a max discount of 10% off.

SimplyCodes is the #1 provider of discount codes for your favorite retailers, such as Oh My Mahjong. As the only crowdsourced platform for coupon codes, we have all the latest and accurate codes for over 200,000 stores. Save time and avoid expired codes by checking SimplyCodes for the latest Oh My Mahjong discount codes.

On average, Oh My Mahjong offers 2.8 coupon codes per month. As of today, Oh My Mahjong has 28 active coupons and offers.

As of Feb 8, 2026, it does not appear that Oh My Mahjong has discounts for Black Friday or Cyber Monday. We regularly check for Oh My Mahjong's Black Friday and Cyber Monday discounts, so be sure to check back on this page to find the latest cyber week deals.