--- title: messages.setBotPrecheckoutResults description: Once the user has confirmed their payment and shipping details, the bot receives an [updateBotPrecheckoutQuery](../constructors/updateBotPrecheckoutQuery.md) update. Use this method to respond to such pre-checkout queries. **Note**: Telegram must receive an answer within 10 seconds after the pre-checkout query was sent. image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png redirect_from: /API_docs/methods/messages_setBotPrecheckoutResults.html --- # Method: messages.setBotPrecheckoutResults [Back to methods index](index.md) Once the user has confirmed their payment and shipping details, the bot receives an [updateBotPrecheckoutQuery](../constructors/updateBotPrecheckoutQuery.md) update. Use this method to respond to such pre-checkout queries. **Note**: Telegram must receive an answer within 10 seconds after the pre-checkout query was sent. ### Parameters: | Name | Type | Description | Required | |----------|---------------|-------------|----------| |success|[Bool](../types/Bool.md) | Set this flag if everything is alright (goods are available, etc.) and the bot is ready to proceed with the order, otherwise do not set it, and set the `error` field, instead | Optional| |query\_id|[long](../types/long.md) | Unique identifier for the query to be answered | Yes| |error|[string](../types/string.md) | Required if the `success` isn't set. Error message in human readable form that explains the reason for failure to proceed with the checkout (e.g. "Sorry, somebody just bought the last of our amazing black T-shirts while you were busy filling out your payment details. Please choose a different color or garment!"). Telegram will display this message to the user. | Optional| ### Return type: [Bool](../types/Bool.md) ### Can bots use this method: **YES** ### MadelineProto Example ([now async for huge speed and parallelism!](https://docs.madelineproto.xyz/docs/ASYNC.html)): ```php if (!file_exists('madeline.php')) { copy('https://phar.madelineproto.xyz/madeline.php', 'madeline.php'); } include 'madeline.php'; $MadelineProto = new \danog\MadelineProto\API('session.madeline'); $MadelineProto->start(); $Bool = $MadelineProto->messages->setBotPrecheckoutResults(['success' => Bool, 'query_id' => long, 'error' => 'string', ]); ``` Or, if you're into Lua: ```lua Bool = messages.setBotPrecheckoutResults({success=Bool, query_id=long, error='string', }) ``` ### Errors | Code | Type | Description | |------|----------|---------------| |400|ERROR_TEXT_EMPTY|The provided error message is empty|