Why Isn’t My Cross-Listed Inventory Syncing?

AccelerList helps keep inventory synchronized for products that have been cross-listed between Amazon and eBay.
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When inventory changes on one marketplace, AccelerList processes the relevant information so the associated cross-listed inventory can be updated.
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Common areas to check include:

One of the first things to check is whether both your Amazon and eBay accounts are still properly connected to AccelerList.
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If eBay authorization has expired or the connection has been revoked, AccelerList may be unable to send inventory updates to eBay.
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Reconnect or reauthorize the account if necessary.
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Locate the affected product and compare:

Also check whether the issue affects only one item or multiple cross-listed products.
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An eBay listing with zero quantity may still appear as active if the seller uses eBay's Out-of-Stock setting. In that case, eBay keeps the listing alive while hiding it from search until inventory becomes available again. eBay Developers
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So an active listing alone doesn't necessarily indicate that synchronization failed.
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If both marketplace connections are active and the quantities still don't match after allowing time for synchronization, contact AccelerList Support.
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Please provide at least one affected ASIN, Amazon SKU, eBay Item ID, the quantity shown on each marketplace, and any recent sale date/time. This gives us a specific example to investigate.