お世話になっております。 Amazonのスポンサープロダクト広告について質問です。特定のキーワードでの表示順位を下げたく、入札を大幅に下げ、推奨入札額よりも大分下に調整したのですが表示順位が高いままで、CPCも高いです。どうして、入札額が変わったにもかかわらず表示順位・CPCが変わらないのでしょうか？

ECマスターズの海老塚です。 > Amazonのスポンサープロダクト広告について質問です。 > 特定のキーワードでの表示順位を下げたく、入札を大幅に下げ、推奨入札額よりも大分下に調整したのですが表示順位が高いままで、CPCも高いです。 > どうして、入札額が変わったにもかかわらず表示順位・CPCが変わらないのでしょうか？スポンサープロダクト広告では、「動的な入札」という機能があります。この機能により、入札額が高すぎる場合は下げ、低すぎる場合は上げるという調整を Amazonが自動で行います。そちらが機能し、システムが自動的に調整している可能性があります。キャンペーン設定のなかのキャンペーンの入札戦略を確認いただき、動的な入札になっていれば、固定額入札に変更してみてください。

入札額の調整と表示順位について

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Cake\Error\ErrorTrap->handleError() /home/ec-masters/forum-cakephp/src/Controller/ForumController.php, line 141
App\Controller\ForumController->view() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Controller/Controller.php, line 503
Cake\Controller\Controller->invokeAction() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Controller/ControllerFactory.php, line 166
Cake\Controller\ControllerFactory->handle() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Controller/ControllerFactory.php, line 141
Cake\Controller\ControllerFactory->invoke() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/BaseApplication.php, line 362
Cake\Http\BaseApplication->handle() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Runner.php, line 86
Cake\Http\Runner->handle() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Middleware/CsrfProtectionMiddleware.php, line 159
Cake\Http\Middleware\CsrfProtectionMiddleware->process() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Runner.php, line 82
Cake\Http\Runner->handle() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Middleware/BodyParserMiddleware.php, line 157
Cake\Http\Middleware\BodyParserMiddleware->process() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Runner.php, line 82
Cake\Http\Runner->handle() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Routing/Middleware/RoutingMiddleware.php, line 118
Cake\Routing\Middleware\RoutingMiddleware->process() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Runner.php, line 82
Cake\Http\Runner->handle() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Routing/Middleware/AssetMiddleware.php, line 71
Cake\Routing\Middleware\AssetMiddleware->process() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Runner.php, line 82
Cake\Http\Runner->handle() /home/ec-masters/forum-cakephp/src/Middleware/HostHeaderMiddleware.php, line 35
App\Middleware\HostHeaderMiddleware->process() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Runner.php, line 82
Cake\Http\Runner->handle() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Error/Middleware/ErrorHandlerMiddleware.php, line 115
Cake\Error\Middleware\ErrorHandlerMiddleware->process() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Runner.php, line 82
Cake\Http\Runner->handle() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Runner.php, line 60
Cake\Http\Runner->run() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Server.php, line 98
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        $dispatchStaff = [];
        if ($auth['alogin'] || $auth['agtlogin']) {
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Cake\Error\ErrorTrap->handleError() /home/ec-masters/forum-cakephp/src/Controller/ForumController.php, line 250
App\Controller\ForumController->view() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Controller/Controller.php, line 503
Cake\Controller\Controller->invokeAction() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Controller/ControllerFactory.php, line 166
Cake\Controller\ControllerFactory->handle() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Controller/ControllerFactory.php, line 141
Cake\Controller\ControllerFactory->invoke() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/BaseApplication.php, line 362
Cake\Http\BaseApplication->handle() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Runner.php, line 86
Cake\Http\Runner->handle() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Middleware/CsrfProtectionMiddleware.php, line 159
Cake\Http\Middleware\CsrfProtectionMiddleware->process() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Runner.php, line 82
Cake\Http\Runner->handle() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Middleware/BodyParserMiddleware.php, line 157
Cake\Http\Middleware\BodyParserMiddleware->process() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Runner.php, line 82
Cake\Http\Runner->handle() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Routing/Middleware/RoutingMiddleware.php, line 118
Cake\Routing\Middleware\RoutingMiddleware->process() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Runner.php, line 82
Cake\Http\Runner->handle() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Routing/Middleware/AssetMiddleware.php, line 71
Cake\Routing\Middleware\AssetMiddleware->process() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Runner.php, line 82
Cake\Http\Runner->handle() /home/ec-masters/forum-cakephp/src/Middleware/HostHeaderMiddleware.php, line 35
App\Middleware\HostHeaderMiddleware->process() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Runner.php, line 82
Cake\Http\Runner->handle() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Error/Middleware/ErrorHandlerMiddleware.php, line 115
Cake\Error\Middleware\ErrorHandlerMiddleware->process() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Runner.php, line 82
Cake\Http\Runner->handle() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Runner.php, line 60
Cake\Http\Runner->run() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Server.php, line 98
Cake\Http\Server->run() /home/ec-masters/forum-cakephp/webroot/index.php, line 37
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Warning (512) : Unable to emit headers. Headers sent in file=/home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Error/Renderer/HtmlErrorRenderer.php line=37 [in /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php, line 65]

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            $message = "Unable to emit headers. Headers sent in file={$file} line={$line}";
            trigger_error($message, E_USER_WARNING);
        }

Cake\Error\ErrorTrap->handleError() [internal], line ??
/home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php, line 65
Cake\Http\ResponseEmitter->emit() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Server.php, line 142
Cake\Http\Server->emit() /home/ec-masters/forum-cakephp/webroot/index.php, line 37
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Warning (2) : Cannot modify header information - headers already sent by (output started at /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Error/Renderer/HtmlErrorRenderer.php:37) [in /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php, line 158]

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        $reasonPhrase = $response->getReasonPhrase();
        header(sprintf(
            'HTTP/%s %d%s',

Cake\Error\ErrorTrap->handleError() [internal], line ??
/home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php, line 158
Cake\Http\ResponseEmitter->emitStatusLine() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php, line 68
Cake\Http\ResponseEmitter->emit() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Server.php, line 142
Cake\Http\Server->emit() /home/ec-masters/forum-cakephp/webroot/index.php, line 37
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            foreach ($values as $value) {
                header(sprintf(
                    '%s: %s',

Cake\Error\ErrorTrap->handleError() [internal], line ??
/home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php, line 191
Cake\Http\ResponseEmitter->emitHeaders() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php, line 69
Cake\Http\ResponseEmitter->emit() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Server.php, line 142
Cake\Http\Server->emit() /home/ec-masters/forum-cakephp/webroot/index.php, line 37
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        return setcookie($cookie->getName(), $cookie->getScalarValue(), $cookie->getOptions());
    }

Cake\Error\ErrorTrap->handleError() [internal], line ??
/home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php, line 228
Cake\Http\ResponseEmitter->setCookie() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php, line 212
Cake\Http\ResponseEmitter->emitCookies() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php, line 200
Cake\Http\ResponseEmitter->emitHeaders() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/ResponseEmitter.php, line 69
Cake\Http\ResponseEmitter->emit() /home/ec-masters/forum-cakephp/vendor/cakephp/cakephp/src/Http/Server.php, line 142
Cake\Http\Server->emit() /home/ec-masters/forum-cakephp/webroot/index.php, line 37
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