更新库存遇到的坑，  xml格式不对，因为输出的测试xml ，后面又加了点字符串，因为这个错误，耽误我好几天。。。下次测试结果时候，一定要等变量完全停止定义的后面 输出

if($debug) echo htmlentities($xml);$feedContents = $xml;// 原来这个多了一行，导致了错误//$xml .= '';

feed 更新方式

1，createFeedDocument 返回 

feedDocumentId

(

POST_INVENTORY_AVAILABILITY_DATA

)

2. uploadxml

3 createfeed

检测方式

1 getFeed

2 

getFeedDocument

3 根据返回的url ,打开这个网址 看feed的执行结果

说明1 。inventory 的xml

1.01A。。。。。。X
Inventory1UpdateSY...DEFAULT3

2 xsd的位置

https://images-na.ssl-images-amazon.com/images/G/01/rainier/help/xsd/release_4_1/Inventory.xsdhttps://images-na.ssl-images-amazon.com/images/G/01/rainier/help/xsd/release_4_1/amzn-envelope.xsd

3 根据xsd 判断xml是否符合格式

https://www.freeformatter.com/xml-validator-xsd.html

最后演示代码

use SellingPartnerApi\Api\FeedsV20210630Api as FeedsApi;
use SellingPartnerApi\FeedType;
use SellingPartnerApi\Model\FeedsV20210630 as Feeds;
。。。。。//POST_INVENTORY_AVAILABILITY_DATA 原来用POST_PRODUCT_DATA 无效$feedType = FeedType::POST_INVENTORY_AVAILABILITY_DATA;$feedsApi = new FeedsApi($config);// Create feed document$createFeedDocSpec = new Feeds\CreateFeedDocumentSpecification(['content_type' => $feedType['contentType']]);$feedDocumentInfo = $feedsApi->createFeedDocument($createFeedDocSpec);$feedDocumentId = $feedDocumentInfo->getFeedDocumentId();
、。。。。。$xml = '';$xml .= '';$xml .= '
';$xml .= '1.01';$xml .= '' . $merchant_id . '';$xml .= '
';$xml .= 'Inventory';$xml .= '';$xml .= '1';//?是否需要 价格更新需要加这个$xml .= 'Update';$xml .= '';// SELLER SKU$xml .= '' . $seller_sku . '';// 售价//  发货中心 ，卖家自发货 用  DEFAULT$xml .= 'DEFAULT';//choice  ,三选一//$xml .= 			'true';$xml .= '' . $qty . '';//$xml .= 			'FulfillmentNetwork';//gmdate("Y-m-dTH:i:s.00:00:00Z")//2022-10-27GMT10:39:16.00:00:000// $created_after , $created_before两个参数不能同时用//minOccurs="0"//$xml .= 			'' . date('Y-m-d',time()) . '';//几天内发货 minOccurs="0"//$xml .= 			'2';//切换货运方式 minOccurs="0"//$xml .= 			'';$xml .= '';$xml .= '';$xml .= '';// 同时修改多个时//$xml .= 	'';//$xml .= 		'2';// 原来这个多了一行，导致了错误//$xml .= '';if ($debug) echo htmlentities($xml);$feedContents = $xml;// The Document constructor accepts a custom \GuzzleHttp\Client object as an optional 3rd parameter. If that// parameter is passed, your custom Guzzle client will be used when uploading the feed document contents to Amazon.$docToUpload = new \SellingPartnerApi\Document($feedDocumentInfo, $feedType);$docToUpload->upload($feedContents);// This is not present in the example$body = new Feeds\CreateFeedSpecification();$body->setMarketplaceIds(['ATVPDKIKX0DER']);$body->setInputFeedDocumentId($feedDocumentId);$body->setFeedType($feedType['name']);$result = $feedsApi->createFeed($body);$feed_id = $result->getFeedId();