> ## Documentation Index > Fetch the complete documentation index at: https://docs.pubrio.com/llms.txt > Use this file to discover all available pages before exploring further. # Status Codes / Errors > Pubrio employs HTTP status / error codes to signify the outcome of your requests. Not all API status codes are currently documented by Pubrio. This documentation contains the most common codes. If you encounter a status that does not make sense, contact Pubrio's support team for further assistance. ## Response codes Typically, 2xx HTTP status codes denote success, 4xx codes represent failures related to the user, and 5xx codes signal infrastructure problems. | Status | Code | Description | | ------ | ------- | -------------------------------------------------------------------- | | `200` | `-` | Request was successful | | `400` | `400` | Data not exists | | `400` | `40037` | Parameter(s) incorrect | | `400` | `40038` | URL incorrect format | | `400` | `40041` | Bad request | | `400` | `40051` | Email has already signed up | | `400` | `40075` | Maximum page limit exceeded | | `400` | `40076` | Maximum per page limit exceeded | | `400` | `40091` | Maximum API query limit exceeded | | `400` | `40092` | Maximum portal query limit exceeded | | `400` | `40095` | Maximum extension query limit exceeded | | `400` | `40097` | Service pause request exists | | `400` | `40098` | Service pause request not exists | | `400` | `40099` | Can't parse news data | | `401` | `40001` | Unauthorized | | `401` | `40129` | Environment access unauthorized | | `403` | `40003` | Forbidden | | `403` | `40313` | Profile access forbidden | | `403` | `40335` | API access forbidden | | `403` | `40348` | Permission forbidden | | `403` | `40343` | Secret token access forbidden | | `403` | `40346` | Chrome extension access forbidden | | `406` | `40602` | The current status does not allow updates to the status you selected | | `406` | `40603` | You need to submit a request to update the status of your choice | | `406` | `40604` | You need to purchase additional user licence | | `406` | `40605` | Credit purchase minimum #min\_credit\_topup# | | `406` | `40606` | Not enough credits | | `408` | `40801` | Request timeout | | `409` | `40901` | Current subscription | | `409` | `40902` | This plan is not able to subscribe | | `409` | `40903` | Contact support | | `409` | `40904` | Data conflict | | `422` | `42234` | Record not found | | `422` | `42235` | Record already exists | | `422` | `42236` | Cycle hierarchy detected | | `429` | `429` | Too Many Requests |