M&M’S Customer Care can help with packaged candy concerns, personalized orders placed through MMS.com, shipping questions, order tracking, promotions, nutrition and ingredient questions, and experiences involving M&M’S World stores. The correct support route depends on where the product was purchased and whether the issue involves ordinary retail candy or an order placed directly through MMS.com.
Customers can call or text M&M’S at 1-888-696-6788. M&M’S currently lists telephone, text, and live-chat availability Monday through Friday from 9:00 AM to 5:30 PM Eastern.
How to Contact M&M’S Customer Service
The previously listed number, 1-800-627-7852, is not included because it could not be verified on M&M’S or Mars’ current official support pages.
Choose the Correct M&M’S Support Category
The official contact form separates requests into three main categories:
- M&M’S product purchased at a retail store: Use this option for packaged candy bought from a grocery store, convenience store, pharmacy, warehouse club, vending location, or online retailer.
- MMS.com personalized candy and apparel: Use this option for customized candy, gifts, favors, clothing, merchandise, order status, shipping, billing, or account questions.
- M&M’S World stores: Use this option for an experience, purchase, return, accessibility concern, or other issue involving an M&M’S World retail location.
Selecting the most accurate category can help route the request to the team responsible for that product or transaction.
Information to Have Before Contacting M&M’S
For packaged candy purchased at a retail store, have the following information available when possible:
- Exact product name and variety
- Package size
- UPC or barcode
- Best-by or freshness date
- Manufacturing or lot code printed on the package
- Store name and location
- Purchase date
- Receipt or other proof of purchase
- Photographs of the product and packaging
- A clear description of the concern
For an MMS.com order, have:
- Order number
- Billing ZIP code
- Name and email address used for the order
- Product and personalization details
- Delivery address
- Tracking information
- Event date, when relevant
- Photographs of damage, printing errors, or missing items
- The resolution being requested
Provide order numbers, billing information, package codes, receipts, and photographs only through private official support channels. Do not publish them in a public review.
Packaged M&M’S Purchased From a Retailer
Mars handles manufacturing, ingredient, quality, packaging, and product-safety questions about M&M’S candy. The store or website that sold the package controls its own checkout, delivery, exchange, and store-refund policies.
Contact M&M’S or Mars about:
- An unusual taste, smell, texture, or appearance
- A damaged or improperly sealed package
- A suspected foreign object
- Missing or incorrect product inside a package
- A nutrition, ingredient, allergen, or labeling question
- A concern involving a package code or freshness date
- A suspected counterfeit product
Contact the retailer about:
- A store receipt
- A price discrepancy
- A missed promotion offered by the retailer
- A retailer delivery
- A store exchange or refund
- A problem with a retailer account or payment system
A retailer may direct a manufacturing or product-quality concern back to Mars. Keep the original packaging until M&M’S Customer Care explains whether it is needed.
Food-Safety and Product-Quality Concerns
Do not continue eating candy that appears contaminated, incorrectly sealed, unusually discolored, or otherwise unsafe. Preserve the package, remaining product, receipt, lot code, and photographs in a secure place away from children and pets.
When reporting a concern:
- Describe what happened without discarding the product or package.
- Record the exact product name, package size, lot code, and date markings.
- Explain where and when the product was purchased.
- Photograph the package and product clearly.
- Contact M&M’S through its official form, phone, text, or live chat.
- Follow the company’s instructions about retaining or returning the product.
Customer service cannot diagnose or treat an illness or allergic reaction. Seek appropriate medical assistance for symptoms, and seek emergency care immediately for a severe reaction or other urgent condition.
M&M’S Ingredients, Allergens, and Nutrition
Ingredients and allergen statements can differ by product variety, package size, production facility, country, and formulation date. Personalized candy may also have labeling considerations that differ from an ordinary retail package.
Before consuming or serving the product:
- Read the ingredient and allergen statements on the specific package.
- Do not rely solely on an old package photograph or third-party product listing.
- Check the official FAQ for general product information.
- Contact M&M’S with the exact product and package code when clarification is needed.
- Consult a qualified medical professional about individual dietary or allergy risks.
CustomerServiceNumbers.com cannot determine whether a particular M&M’S product is safe for an individual allergy, medical condition, religious diet, or dietary restriction.
MMS.com Personalized Orders
Personalized candy, favors, gifts, apparel, and merchandise ordered through MMS.com are handled by the online M&M’S store. The store is operated by Mars Retail Group, LLC, a Mars, Incorporated subsidiary.
Contact MMS.com Customer Care about:
- Order placement problems
- Personalization or image questions
- Billing or payment problems
- Promotion-code issues
- Address corrections
- Order changes or cancellation requests
- Shipping and tracking
- Damaged packages
- Printing errors
- Missing products
- Return or refund eligibility
Personalized candy and custom merchandise may enter production quickly. Contact Customer Care immediately after discovering an error. Sending a message does not guarantee that production, printing, or shipment can be stopped.
Track an M&M’S Personalized Order
The official order-status page requires the order number and billing ZIP code.
- Open the M&M’S order-status page.
- Enter the order number exactly as shown in the confirmation.
- Enter the billing ZIP code used at checkout.
- Review the displayed production or shipping status.
- Use the official contact form or call Customer Care if the information appears incorrect.
Do not post the order number and billing ZIP code together in a public comment. That combination may expose private order information.
M&M’S Shipping and Delivery Help
MMS.com publishes separate shipping information for personalized candy and merchandise. Shipping availability, charges, estimated arrival dates, warm-weather handling, and delivery restrictions can change.
Before ordering:
- Review the estimated production and delivery time.
- Allow additional time before weddings, birthdays, trade shows, and other fixed-date events.
- Confirm the recipient’s complete address.
- Check whether the destination is supported.
- Review the shipping charge before submitting payment.
If the order has already shipped, the carrier controls transportation and delivery scans. MMS.com controls any replacement, refund, or order-resolution decision. Customers may therefore need to communicate with both the carrier and M&M’S Customer Care.
Damaged, Melted, Missing, or Incorrect Orders
Inspect a personalized order promptly after delivery. Preserve the shipping carton, label, internal packaging, candy, merchandise, and any cooling materials until Customer Care provides instructions.
Document:
- The condition of the outside box
- The shipping label
- The arrangement of the internal packaging
- Heat or moisture damage
- Missing quantities
- Incorrect colors, messages, photographs, or products
- Any carrier damage notice
Contact Customer Care promptly and provide clear photographs. Do not send food or merchandise to a corporate address without receiving current return instructions.
M&M’S Returns and Refunds
Return and refund eligibility depends on the product, personalization, condition, purchase source, and current policy. Review the official FAQ and contact M&M’S before mailing anything back.
- A retailer controls returns for packaged candy purchased from that retailer.
- MMS.com controls returns for qualifying orders placed directly on MMS.com.
- An M&M’S World store controls transactions made at that location, subject to its current policy.
- A payment provider controls the time required for an approved credit to appear after it is issued.
Keep the order confirmation, support case number, return instructions, carrier tracking, delivery confirmation, and written refund approval.
M&M’S Business and Corporate-Gifting Orders
Companies, promotional agencies, event planners, and other professional buyers can contact M&M’S Business Solutions Specialists at 1-866-290-6854, Monday through Friday from 9:00 AM to 5:30 PM Eastern.
This line is intended for business consultations and promotional orders. It is not the primary line for ordinary consumer complaints about packaged candy.
For personalized orders over $5,000, the official shipping page also lists customerservice@mymms.com for shipping coordination. Do not use that address for unrelated Mars brands or general corporate correspondence.
M&M’S World Store Support
M&M’S World locations are physical retail stores. A store may be responsible for an in-person purchase, return request, accessibility concern, staff interaction, event, or lost property issue.
When contacting M&M’S about a store experience, include:
- Store city and location
- Date and approximate time
- Receipt or transaction information
- Product or merchandise involved
- A factual description of the issue
- The resolution requested
A local shopping center, landlord, security provider, or parking operator may be responsible for issues outside the store itself.
Promotions, Coupons, and Pricing
The responsible party depends on who offered the promotion.
- MMS.com code: Contact MMS.com Customer Care.
- Retail-store coupon or advertised price: Contact the retailer.
- Card-linked or payment-provider offer: Contact that financial provider.
- Third-party rebate or cash-back service: Contact the company operating the offer.
Save the promotion terms, expiration date, screenshot, cart total, and order confirmation. A public review does not apply a coupon or generate a price adjustment.
How to Escalate an M&M’S Support Concern
- Choose the correct category on the official contact form.
- Provide the relevant order or package information privately.
- Ask for a case or reference number.
- Save copies of the form submission and replies.
- Check spam, junk, and promotions folders if no email response arrives.
- Follow up by phone, text, or chat using the same case information.
- Contact the retailer, carrier, payment provider, or local store when that party controls the issue.
M&M’S states that it responds to every contact-form inquiry. If no reply is visible within 48 hours, check filtered email folders before submitting a duplicate request.
M&M’S Scam and Impersonation Warnings
- Use MMS.com, Mars.com, and contact information displayed on those official websites.
- Do not trust a telephone number solely because it appears in a sponsored search result.
- Do not give an unexpected caller your account password or verification code.
- Do not pay a supposed refund, prize, or product-replacement fee using gift cards, cryptocurrency, or a person-to-person transfer.
- Do not allow a supposed candy-company representative to control your computer or mobile device remotely.
- Verify sweepstakes and prize messages through official published rules.
- Do not mail a product to an address supplied by an unverified caller.
- Contact the card issuer directly about an unauthorized completed charge.
Protect Your Personal Information
Do not include the following information in a public review:
- Order numbers
- Billing ZIP codes
- Home or delivery addresses
- Private email addresses or telephone numbers
- Payment-card or bank information
- Passwords or verification codes
- Unredacted receipts or shipping labels
- Detailed medical records
- Photographs identifying children
- Names or private contact information of individual employees
M&M’S and Mars Corporate Information
- Brand: M&M’S
- Parent company: Mars, Incorporated
- MMS.com store operator: Mars Retail Group, LLC
- Consumer phone and text: 1-888-696-6788
- Official M&M’S website: MMS.com
- Mars website: Mars.com
A Mars corporate or privacy address is not a customer-service return center. Do not mail candy, merchandise, receipts, medical information, or complaint documents to a corporate address unless M&M’S or Mars provides written instructions for the specific case.
M&M’S Customer Service Reviews and Complaints
Only firsthand comments actually displayed on this page should be treated as CustomerServiceNumbers.com reviews. This article does not assume that customers commonly praise or complain about a subject unless that theme is supported by visible reviews.
Useful reviews may describe experiences involving retail-product concerns, personalized orders, shipping, refunds, printing errors, allergens, nutrition questions, promotions, business orders, or M&M’S World stores.
Related Customer Service Numbers Pages
Why Trust CustomerServiceNumbers.com?
CustomerServiceNumbers.com has helped consumers locate customer-service information and share support experiences since 2004. The site independently organizes official support channels but does not represent M&M’S, Mars, Mars Retail Group, any retailer, shipping carrier, payment provider, or M&M’S World location.
Share Your M&M’S Customer Service Experience
Have you contacted M&M’S about packaged candy, a product-quality concern, personalized candy, apparel, shipping, a refund, a promotion, a business order, or an M&M’S World store? Leave a factual review below and describe which support channel you used, the approximate response time, and whether the matter was resolved.
Comments are moderated. Do not post order numbers, billing ZIP codes, package lot codes, addresses, payment information, medical records, passwords, verification codes, private contact information, unredacted receipts, or names of individual employees.
Posting on CustomerServiceNumbers.com does not contact M&M’S or Mars. It does not open a product complaint, cancel or change an order, trace a shipment, request a return, obtain a refund, report an allergen issue, apply a promotion, or contact an M&M’S World store.
Last Updated: July 13, 2026
Customer Service Information Disclaimer
CustomerServiceNumbers.com is an independent consumer-information website and is not affiliated with M&M’S, Mars, Incorporated, Mars Retail Group, LLC, any retailer, M&M’S World store, shipping carrier, payment provider, promotional partner, or government agency. M&M’S does not provide customer service through this website.
Telephone numbers, operating hours, ingredients, allergen statements, product formulations, promotions, shipping options, return terms, refund procedures, store policies, and support channels can change. Verify current information on the official M&M’S website, the product package, the order confirmation, and the applicable seller’s policies.
This page cannot inspect a product, determine medical safety, access an order, change personalization, cancel a shipment, issue a refund, apply a coupon, contact a store, or submit a complaint to M&M’S or Mars.