Molly.com, which refers to Hello Molly, offers several category-level promotions rather than one permanent code program. Common types include new-customer or email-signup discounts, student offers, event-based percentage discounts, survey incentives, and spend-based promotions. Exact eligibility and exclusions vary by offer.

Hello Molly's promotions can include expiration dates, minimum purchase requirements, product exclusions, and one-use limits. Discounted products, gift cards, accessories, or sale items may be excluded depending on the specific promotion.

To use an eligible offer:

1. Add qualifying products to the cart.
2. Enter the current offer in the checkout discount field.
3. Confirm that the order total changes before paying.
4. If it fails, review the offer's customer, product, minimum-spend, and expiration requirements.

Molly.com (Hello Molly) typically limits checkout to one promotional code per order. Its terms state that coupon codes generally cannot be combined with other promotional offers or discounts unless a specific promotion says otherwise.

This means a new-customer, student, survey, or event-based discount usually must be selected individually. A checkout attempt to combine two offers may leave one discount unapplied or prevent the promotion from validating.

To troubleshoot:

1. Remove all but the strongest eligible offer.
2. Check whether the cart already contains an automatic sale or promotion.
3. Reapply one code after clearing the previous discount.
4. Confirm that the final order summary reflects the intended reduction before completing payment.

Gift cards and shipping benefits should be treated separately from promotional-code stacking because their application depends on the checkout configuration and offer terms.

Molly.com promotions commonly restrict sale merchandise, already-discounted products, gift cards, accessories, beauty items, or other listed product categories. Hello Molly's terms indicate that each promotion may impose its own expiration date, minimum purchase requirement, product exclusions, and availability limits. Student-offer terms specifically exclude sale items, accessories, beauty products, and gift cards.

A code can therefore appear valid but fail when the cart contains ineligible products. Spend-based promotions may also calculate the threshold only from qualifying merchandise, even when excluded items contribute to the overall cart total.

To resolve the issue:

1. Review the promotion's exclusions.
2. Remove sale or excluded products temporarily.
3. Recalculate the qualifying subtotal.
4. Apply the offer again.
5. Check whether the order is already receiving an automatic discount.

Hello Molly also reserves the ability to withdraw promotions or void codes in cases of suspected misuse, abuse, or fraud.

Molly.com offers free shipping primarily through an order-value threshold rather than a dedicated shipping code. Hello Molly's US shipping terms list free standard shipping on US orders over the published threshold, while orders below it incur a standard delivery charge.

Because shipping rules can vary by country, delivery method, and promotion period, a shipping code may not be necessary or may not apply to expedited service. High-volume and sale periods can also delay dispatch, even when the order qualifies for free delivery.

For the US checkout:

1. Confirm the delivery country and shipping method.
2. Check the cart subtotal against the current free-shipping threshold.
3. Select standard shipping if the offer is limited to that service.
4. Verify that the shipping charge disappears before payment.

If free shipping does not activate, check whether the order is below the threshold, uses an expedited method, contains a country-specific restriction, or is affected by a temporary shipping promotion.

At Molly.com, a code can fail because it is expired, limited to one person or email address, restricted to new customers, below a required minimum spend, or incompatible with sale merchandise and another active promotion. Hello Molly's terms identify expiration dates, minimum purchases, product exclusions, one-use limits, and non-stacking rules as possible conditions.

A failed checkout attempt does not necessarily mean the code is mistyped. The offer may be valid only for full-price products, verified students, a particular customer segment, or a specific promotional period. Survey-based offers, for example, can be limited to one discount per person or email address and may require a minimum purchase.

Try this sequence:

1. Remove other promotional discounts.
2. Confirm the cart meets the minimum qualifying subtotal.
3. Remove sale, accessory, beauty, or gift-card items when excluded.
4. Check customer eligibility and one-use restrictions.
5. Re-enter the offer and confirm the discount appears in the order summary.

If the checkout still rejects it, the offer may have been withdrawn, exhausted, or limited to a targeted audience.