# Institution Errors source: https://developer.mastercard.com/open-finance-us/documentation/errors/institution-errors/index.md An institution error is returned when a connection to a financial institution is impacted. These errors can occur during planned maintenance or unknown maintenance windows, or when a new or existing connection is disrupted. They can impact data refreshes or live data requests during the time when a connection is impacted. Mastercard Data Connect alerts allow up to 5 attempts for the end user after which the session will end. Alerts generated by the Data Connect application are intended solely for informational purposes and may change without notice. Data Connect alerts should not be used for programmatic purposes. | Error Codes | Error Theme | Description | |-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------|--------------------------------------------------------------------------------------------------------------------------| | [900](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/900/index.md) [901](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/901/index.md) [903](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/903/index.md) [904](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/904/index.md) [916](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/916/index.md) | New Connection In Progress | A new connection to a financial institution is being created. | | [101](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/101/index.md) \| [102](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/102/index.md) [104](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/104/index.md) \| [105](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/105/index.md) [418](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/418/index.md) \| [419](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/419/index.md) [575](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/575/index.md) \| [580](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/580/index.md) [905](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/905/index.md) \| [906](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/906/index.md) [907](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/907/index.md) \| [908](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/908/index.md) [910](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/910/index.md) \| [911](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/911/index.md) [970](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/970/index.md) \| [971](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/971/index.md) [2018](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/2018/index.md) | Existing Connection Interruptions | Existing connection to a financial institution is down. | | [920](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/920/index.md) \| [921](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/921/index.md) [922](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/922/index.md) \| [923](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/923/index.md) [924](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/924/index.md) \| [925](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/925/index.md) [926](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/926/index.md) \| [928](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/928/index.md) [929](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/929/index.md) \| [950](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/950/index.md) [960](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/960/index.md) \| [972](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/972/index.md) [973](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/973/index.md) \| [975](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/975/index.md) [976](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/976/index.md) [1415](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/1415/index.md) [2032](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/2032/index.md) [14020](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/14020/index.md) [14006](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/14006/index.md) | Connection not supported | Error when connection to a financial institution is not supported. | | [945](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/945/index.md) [948](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/948/index.md) | Connection Migration In Progress | Occurs when an account is migrated from legacy to OAuth connection but requires customer to provide their consent again. | | [20007](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/20007/index.md) [20009](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/20009/index.md) | Account Migration Error | Occurs when accounts cannot be migrated from legacy to OAuth connections. | | [111](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/111/index.md) \| [114](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/114/index.md) [115](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/115/index.md) \| [116](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/116/index.md) [118](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/118/index.md) \| [119](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/119/index.md) [120](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/120/index.md) \| [121](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/121/index.md) [122](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/122/index.md) \| [123](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/123/index.md) [124](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/124/index.md) \| [125](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/125/index.md) [126](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/126/index.md) \| [127](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/127/index.md) [128](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/128/index.md) \| [129](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/129/index.md) [130](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/130/index.md) \| [133](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/133/index.md) [136](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/136/index.md) \| [138](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/138/index.md) [145](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/145/index.md) \| [151](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/151/index.md) [155](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/155/index.md) \| [156](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/156/index.md) [159](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/159/index.md) \| [164](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/164/index.md) [166](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/166/index.md) \| [167](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/167/index.md) [168](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/168/index.md) \| [170](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/170/index.md) [178](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/178/index.md) \| [180](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/180/index.md) [184](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/184/index.md) \| [198](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/198/index.md) [417](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/417/index.md) \| [500](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/500/index.md) [525](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/525/index.md) \| [951](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/951/index.md) [953](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/953/index.md) \| [954](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/954/index.md) [979](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/979/index.md) \| [980](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/980/index.md) [982](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/982/index.md) \| [983](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/983/index.md) [11000](https://developer.mastercard.com/open-finance-us/documentation/errors/error-codes/11000/index.md) | Other Connection Issues | List of other connection issues you may encounter. |