# Mobius Materials Help Center > Expert Advice From the Mobius Materials Team ## English ### General Info - [What type of company are you?](https://docs.mobiusmaterials.com/en/articles/11458708-what-type-of-company-are-you.md) - [How do you determine the CNY:USD exchange rate?](https://docs.mobiusmaterials.com/en/articles/11458714-how-do-you-determine-the-cny-usd-exchange-rate.md) - [Date Codes](https://docs.mobiusmaterials.com/en/articles/15648856-date-codes.md): This article describes what sellers and buyers can expect re. date codes - [Quality Exceptions](https://docs.mobiusmaterials.com/en/articles/16910216-quality-exceptions.md): This article describes what a quality exception is, how Mobius inspects parts at our hub before shipment, and what buyers and sellers can expect when a listing does not match what arrives. - [Why am I not receiving emails from Mobius?](https://docs.mobiusmaterials.com/en/articles/17221994-why-am-i-not-receiving-emails-from-mobius.md): This article explains how buyers and sellers can whitelist the Mobius domain to receive important notifications about their account, activities, and orders. ### Get Started as a Buyer - [How do I buy from Mobius?](https://docs.mobiusmaterials.com/en/articles/11458626-how-do-i-buy-from-mobius.md) - [Finding parts](https://docs.mobiusmaterials.com/en/articles/10872476-finding-parts.md): It's easy to search the Mobius Materials catalog. You'll find excellent prices, including out of stock and rare parts. - [Quality Guarantee for Buyers](https://docs.mobiusmaterials.com/en/articles/11386886-quality-guarantee-for-buyers.md): A quick guide to what we do to insure quality - [What payment methods are available at checkout?](https://docs.mobiusmaterials.com/en/articles/11458628-what-payment-methods-are-available-at-checkout.md) - [What are the payment terms?](https://docs.mobiusmaterials.com/en/articles/11458647-what-are-the-payment-terms.md) - [How do customs, duties and taxes work when buying from Mobius?](https://docs.mobiusmaterials.com/en/articles/11458666-how-do-customs-duties-and-taxes-work-when-buying-from-mobius.md) - [What shipping methods are available?](https://docs.mobiusmaterials.com/en/articles/11458687-what-shipping-methods-are-available.md) - [What countries do you ship to?](https://docs.mobiusmaterials.com/en/articles/11458697-what-countries-do-you-ship-to.md) - [What is your return policy?](https://docs.mobiusmaterials.com/en/articles/11458698-what-is-your-return-policy.md) - [How does Mobius authenticate parts?](https://docs.mobiusmaterials.com/en/articles/11458701-how-does-mobius-authenticate-parts.md) - [How can I get more information about a listing such as the date code or country of origin?](https://docs.mobiusmaterials.com/en/articles/11458703-how-can-i-get-more-information-about-a-listing-such-as-the-date-code-or-country-of-origin.md) - [I want a different quantity than is available on the site. Is that possible?](https://docs.mobiusmaterials.com/en/articles/11458706-i-want-a-different-quantity-than-is-available-on-the-site-is-that-possible.md) - [What do the different conditions mean?](https://docs.mobiusmaterials.com/en/articles/11458707-what-do-the-different-conditions-mean.md) - [Where do you buy your parts?](https://docs.mobiusmaterials.com/en/articles/11458710-where-do-you-buy-your-parts.md) - [What type of warranty is there on the parts I buy from Mobius?](https://docs.mobiusmaterials.com/en/articles/11458712-what-type-of-warranty-is-there-on-the-parts-i-buy-from-mobius.md) - [How do you charge for RFQs and Sourcing Requests?](https://docs.mobiusmaterials.com/en/articles/11458713-how-do-you-charge-for-rfqs-and-sourcing-requests.md) - [Why was I invited to bid on listings?](https://docs.mobiusmaterials.com/en/articles/11751053-why-was-i-invited-to-bid-on-listings.md): A seller invited you to bid on their listings and join the Mobius Platform. Here's what to do next. - [Uploading BOMs via CSV](https://docs.mobiusmaterials.com/en/articles/14645647-uploading-boms-via-csv.md): This article explains how to upload a bill of materials items \(BOM items\) in bulk using CSV. - [Buying Electronic Components in Mobius Auctions](https://docs.mobiusmaterials.com/en/articles/15786939-buying-electronic-components-in-mobius-auctions.md) - [Placing a Bid on an Auction Part](https://docs.mobiusmaterials.com/en/articles/15787156-placing-a-bid-on-an-auction-part.md): This article describes the process to place a bid on a listing up for auction. - [What is a binding bid?](https://docs.mobiusmaterials.com/en/articles/16775476-what-is-a-binding-bid.md): All bids are binding for buyers at Mobius. Learn here what that means. - [Buyer verification](https://docs.mobiusmaterials.com/en/articles/16776080-buyer-verification.md): Mobius verifies every buyer on the platform. Verification covers your business standing, your legal identity and your compliance status. ### Get Started as a Seller - [How do I start selling to Mobius?](https://docs.mobiusmaterials.com/en/articles/11458716-how-do-i-start-selling-to-mobius.md) - [What are the requirements to be a seller at Mobius?](https://docs.mobiusmaterials.com/en/articles/11458719-what-are-the-requirements-to-be-a-seller-at-mobius.md) - [Creating a new listing](https://docs.mobiusmaterials.com/en/articles/10910538-creating-a-new-listing.md): List your parts and get offers with Mobius Materials with our easy-upload system. - [Get an estimate for your inventory](https://docs.mobiusmaterials.com/en/articles/10952240-get-an-estimate-for-your-inventory.md): Mobius Materials can provide a free estimate for the value of your inventory on the market - [How do prices on my parts work?](https://docs.mobiusmaterials.com/en/articles/11458724-how-do-prices-on-my-parts-work.md) - [How fast do parts sell?](https://docs.mobiusmaterials.com/en/articles/11458728-how-fast-do-parts-sell.md) - [How much do parts typically sell for?](https://docs.mobiusmaterials.com/en/articles/11458731-how-much-do-parts-typically-sell-for.md) - [Shipping parts to Mobius](https://docs.mobiusmaterials.com/en/articles/11458733-shipping-parts-to-mobius.md) - [How do customs, duties and taxes work when selling to Mobius?](https://docs.mobiusmaterials.com/en/articles/11458734-how-do-customs-duties-and-taxes-work-when-selling-to-mobius.md) - [How much does Mobius charge for selling?](https://docs.mobiusmaterials.com/en/articles/11458736-how-much-does-mobius-charge-for-selling.md) - [How do I invite a broker?](https://docs.mobiusmaterials.com/en/articles/11751002-how-do-i-invite-a-broker.md): Send your listings to any partners to keep all your offers in one place. - [Uploading Listings via CSV](https://docs.mobiusmaterials.com/en/articles/14547089-uploading-listings-via-csv.md): This article helps uses upload listings via csv, the bulk uploading process. - [Condition of Listings](https://docs.mobiusmaterials.com/en/articles/16140935-condition-of-listings.md): This article describes what counts as new, original and authentic on the Mobius platform. ### Become an Expert Buyer - [I want to bid on more than one part. Can I do a bulk upload?](https://docs.mobiusmaterials.com/en/articles/11739127-i-want-to-bid-on-more-than-one-part-can-i-do-a-bulk-upload.md): CSV Tools for Efficient Bidding - [What happens if I cancel my bid?](https://docs.mobiusmaterials.com/en/articles/11739132-what-happens-if-i-cancel-my-bid.md): Maintain Good Standing on Bidding - [How do I know if the seller has accepted my bid?](https://docs.mobiusmaterials.com/en/articles/11739137-how-do-i-know-if-the-seller-has-accepted-my-bid.md): Where to Find Bid Updates - [Can I negotiate with the seller after I place a bid?](https://docs.mobiusmaterials.com/en/articles/11739139-can-i-negotiate-with-the-seller-after-i-place-a-bid.md): Countering after a bid is submitted - [How do I know if my offer is the top bid?](https://docs.mobiusmaterials.com/en/articles/11739141-how-do-i-know-if-my-offer-is-the-top-bid.md): Check Your Ranking in the Analysis Box - [How do I know if I should accept or renegotiate my offer?](https://docs.mobiusmaterials.com/en/articles/11739143-how-do-i-know-if-i-should-accept-or-renegotiate-my-offer.md): Navigate the Market with Expert Support - [How will I know if I have been outbid?](https://docs.mobiusmaterials.com/en/articles/11739152-how-will-i-know-if-i-have-been-outbid.md): Keeping on top of your bids - [How do I see my bids in one place?](https://docs.mobiusmaterials.com/en/articles/11739154-how-do-i-see-my-bids-in-one-place.md): Track Bids and Next Steps - [How do I know which listing\(s\) will expire soon for bidding?](https://docs.mobiusmaterials.com/en/articles/11739159-how-do-i-know-which-listing-s-will-expire-soon-for-bidding.md): Know how much time you have to place bids - [Why can I not see my bids?](https://docs.mobiusmaterials.com/en/articles/11739158-why-can-i-not-see-my-bids.md): Delays with bulk uploads - [Auction Timelines](https://docs.mobiusmaterials.com/en/articles/16400848-auction-timelines.md): This article walks through what happens at each stage of a Mobius auction, roughly how long each stage takes and how auctions can get extended. - [Inventory Alerts](https://docs.mobiusmaterials.com/en/articles/16793308-inventory-alerts.md): This article describes how buyers set up inventory alerts to get emailed when parts matching their MPN, category or price conditions come into Mobius stock. - [Can I cancel my order if the seller hasn't shipped?](https://docs.mobiusmaterials.com/en/articles/16804963-can-i-cancel-my-order-if-the-seller-hasn-t-shipped.md): This article describes the process for cancelling an order that has not shipped, including the 30 day window, refund timing and how to request cancellation. - [What happens if we find a quality issue with my order?](https://docs.mobiusmaterials.com/en/articles/16911275-what-happens-if-we-find-a-quality-issue-with-my-order.md): This article describes what buyers can expect when inspection finds a quality exception on an order, including date code and packaging exceptions, quantity variances, and when a line is cancelled a... - [What happens if the quantity is different from what I ordered?](https://docs.mobiusmaterials.com/en/articles/16911284-what-happens-if-the-quantity-is-different-from-what-i-ordered.md): This article describes what buyers should do when the quantity counted at the Mobius hub differs from the quantity ordered, and how to respond to a quantity variance in the platform. - [Why was part of my order cancelled and relaunched?](https://docs.mobiusmaterials.com/en/articles/16911285-why-was-part-of-my-order-cancelled-and-relaunched.md): This article describes why Mobius cancels a line from a buyer's order after inspection, how the credit note works, and how buyers can bid on the relaunched part. ### Become an Expert Seller - [Can I communicate with the buyer\(s\) bidding on my listing?](https://docs.mobiusmaterials.com/en/articles/11739055-can-i-communicate-with-the-buyer-s-bidding-on-my-listing.md): Reaching out to your bidders in the platform - [Can I get expert advice from Mobius Materials regarding my listings?](https://docs.mobiusmaterials.com/en/articles/11739061-can-i-get-expert-advice-from-mobius-materials-regarding-my-listings.md): Let our team help you make the best selling decisions. - [How do I communicate my starting price and communicated target price to my buyers?](https://docs.mobiusmaterials.com/en/articles/11739075-how-do-i-communicate-my-starting-price-and-communicated-target-price-to-my-buyers.md): Communicating Your Pricing Expectations to Buyers - [What should I do if the buyer\(s\) does not meet my target price?](https://docs.mobiusmaterials.com/en/articles/11739094-what-should-i-do-if-the-buyer-s-does-not-meet-my-target-price.md): Negotiating on on our platform - [How important is it to upload photos of my listings?](https://docs.mobiusmaterials.com/en/articles/11739102-how-important-is-it-to-upload-photos-of-my-listings.md): Why You Should Upload Photos of Your Listings - [When will my listings move to buy now only?](https://docs.mobiusmaterials.com/en/articles/11739117-when-will-my-listings-move-to-buy-now-only.md): Moving listings from our bidding plaform to "Buy Now" - [Uploading Quotes via CSV](https://docs.mobiusmaterials.com/en/articles/15089577-uploading-quotes-via-csv.md) - [Listing Expiration](https://docs.mobiusmaterials.com/en/articles/15809919-listing-expiration.md): How Listing expiration works and how to keep inventory active - [Relaunching a Listing After a Quality Exception](https://docs.mobiusmaterials.com/en/articles/16911291-relaunching-a-listing-after-a-quality-exception.md): This article describes why Mobius relaunches a seller's parts in a new auction after a quality exception, what happens to the original PO, and how sellers review bids on a relaunch. - [PO Adjustments After Inspection](https://docs.mobiusmaterials.com/en/articles/16911289-po-adjustments-after-inspection.md): This article describes when Mobius adjusts a seller's PO after inspection, covering date codes, quantity variances, non-original packaging, and the revised PO and payouts. - [Negotiating with Counter Offers](https://docs.mobiusmaterials.com/en/articles/17344453-negotiating-with-counter-offers.md): This article describes how sellers negotiate and counter offers on Mobius listings, what the buyer sees, and why a counter offer is binding. ## 简体中文 ### General Info - [为什么我收不到 Mobius 的邮件?](https://docs.mobiusmaterials.com/zh-CN/articles/17221994-为什么我收不到-mobius-的邮件.md): 本文介绍买家和卖家如何将 Mobius 的域名加入白名单,以便及时收到账户、交易和订单相关的重要通知。 ### Become an Expert Buyer - [如果我们发现您的订单存在质量问题,会怎么处理?](https://docs.mobiusmaterials.com/zh-CN/articles/16911275-如果我们发现您的订单存在质量问题-会怎么处理.md): 本文介绍质检在订单上发现质量异常时买家可以预期的处理方式,包括日期代码异常和包装异常、数量差异,以及订单行被取消并重新上架的情形。