# Data Connect Errors source: https://developer.mastercard.com/open-finance-us/documentation/connect/connect-errors/index.md This section summarizes errors which can occur during different stages of the user journey through the Data Connect experience. For a summary of the user flow, see the [Data Connect Flow](https://developer.mastercard.com/open-finance-us/documentation/connect/index.md#the-data-connect-flow) section (more detailed flows for particular scenarios are also available in the [Experience Design Guide](https://developer.mastercard.com/open-finance-us/documentation/experience-design-guide/index.md)). For a full list of all the possible errors, see the [Error Handling](https://developer.mastercard.com/open-finance-us/documentation/errors/index.md) section. ## Errors While Connecting to the FI and Selecting or Reviewing Accounts {#errors-while-connecting-to-the-fi-and-selecting-or-reviewing-accounts} The screens shown to the user during the Data Connect flow are as follows: 1. Accept the Terms and Conditions and the Privacy Policy agreement. 2. Search Financial Institutions. 3. Connect to a Financial Institution. 4. Log in to the Financial Institution. 5. Select the accounts to share financial data. 6. Review the connected accounts and the account details. The following tables provide a summary of the errors which can typically arise during these steps. Click on the links for the error numbers for details of each error and what you can do to resolve the issue. * **Errors While Selecting and Logging in to the FI** The following errors can be encountered during steps 1 to 4: | HTTP Status Code | Error Theme | Error Codes | |------------------------------|-----------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | 500 | Account Not Found | [909, 913, 914, 946, 952, 955, 38006, 38003](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/account-not-found/909-913-914-946-952/index.md) | | 500/409 | Incomplete Authorization | [185, 187, 931, 938, 940, 3003, 3004, 10814, 12003, 38007, 50024, 50025](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/incompleteauth/938-940-971-185-187/index.md) | | 500 | Additional Information Needed | [936, 959, 961, 106, 107, 108, 109, 38053](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/addinfo/106-108-109-961-959/index.md) | | 500 | Invalid Account | [949](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/949/index.md) | | 500 | Invalid Token | [947, 4034](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/invalidtoken/947-2024/index.md) | | 500 | Connection Not Supported | [920, 921, 922, 923, 924, 925, 926, 927, 928, 929, 950, 960, 972, 973, 975, 976, 1403, 1415, 2032, 4041, 10008, 10106, 14020, 14006](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/connection-not-supported/index.md) | | 500 | Data Sync in Progress | [325](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/325/index.md) | | 500 | Invalid Credentials | [103, 45002, 24303, 110039](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/invalidcredentials/index.md) | | 500 | Item Not Found | [265, 1007, 12015, 13002, 13004, 14001, 14002, 14003, 14006, 14008, 20000, 20001, 20003, 20017, 20027, 24553, 38008, 38057, 90004, 10046, 10047, 110002](https://developer.mastercard.com/open-finance-us/documentation/errors/request/item-not-found/index.md) | | 500, 4xx, 401 | Unexpected login error | [179, 1008, 2040](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/unexpectedloginerror/unexpectedloginerror/index.md) | | 500 | New Connection in Progress | [900, 901, 902, 903, 904, 915, 916](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/connection-ip/900-901-903-904-916/index.md) | | 500 | Existing Connection Interruptions | [101, 102, 104, 105, 418, 419, 575, 579, 580, 905, 906, 907, 908, 910, 911, 970, 971](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/connection-interrupt/existing-connection-interruptions/index.md) | | 500 | Other Connection Issues | [979](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#unknown-connection-errors), [980](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#unknown-connection-errors), [982](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#unknown-technical-errors), [983](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#unknown-connection-errors), [110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 136, 137, 138, 139, 141, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#unknown-technical-errors), [168, 169](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#data-mismatch-errors), [170, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 186, 188, 189, 190, 191, 192, 193](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#unknown-technical-errors), [194](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#194), [195, 196](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#unknown-technical-errors), [197](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#197), [198, 201](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#unknown-technical-errors), [417](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#417), [500](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#500), [525](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#525), [341, 342, 343, 344, 345, 951, 953, 954](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#unknown-connection-errors), [11000](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#11000) | | 400/500 | Unexpected System Issue | [990, 991, 992, 993, 994, 995, 996, 997, 998, 1000, 1001, 1002, 1004, 1005, 1009, 1010, 1011, 1012, 14030, 10030, 12001, 12008, 12009, 19000, 20014, 50050, 110015](https://developer.mastercard.com/open-finance-us/documentation/errors/request/unexpected-system-issue/index.md) | | 401, 404, 503, 403, 500, 400 | Invalid Request | [973, 978, 981, 2005, 10000, 10001, 10005, 10010, 14023, 20002, 20024, 20028, 38054, 38056, 42002, 42003, 42004](https://developer.mastercard.com/open-finance-us/documentation/errors/request/invalidrequest/index.md) | | 500 | Bad Request | [20025](https://developer.mastercard.com/open-finance-us/documentation/errors/request/badrequest/index.md#20025) | | 500 | API Request Authentication Issues | [24302](https://developer.mastercard.com/open-finance-us/documentation/errors/request/api-auth-issue/index.md#24302) | | 500 | Maximum Limit Exceeded | [977](https://developer.mastercard.com/open-finance-us/documentation/errors/request/max-limit-exceeded/index.md) | * **Errors While Selecting and Reviewing Accounts** The following errors can be encountered during steps 5 and 6: | HTTP Status Code | Error Theme | Error Codes | |--------------------|-----------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | 500/404 | Account Not Found | [909, 913, 946, 952, 955, 38003, 38006](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/account-not-found/909-913-914-946-952/index.md) | | 404 | Item Not Found | [14001](https://developer.mastercard.com/open-finance-us/documentation/errors/request/item-not-found/index.md#14001) | | 500/409 | Incomplete Authorization | [931, 938, 940, 185, 187, 10814, 12003, 38007, 50024, 50025](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/incompleteauth/938-940-971-185-187/index.md) | | 500 | Additional Information Needed | [936, 959, 961, 106, 107, 108, 109, 38053](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/addinfo/106-108-109-961-959/index.md) | | 500 | Invalid Token | [947, 4034](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/invalidtoken/947-2024/index.md) | | 401, 500 | Connection Not Supported | [920, 921, 922, 923, 924, 925, 926, 927, 928, 929, 950, 960, 972, 973, 975, 976, 2032, 1403, 4041, 10008, 10106, 14020, 201000, 1415](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/connection-not-supported/index.md) | | 401, 500 | Expired Session | [974, 194, 331, 1408, 1440, 502, 503, 504, 10022, 10023](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/expiredsession/expiredsession/index.md) | | 500, 503, 404, 403 | Invalid Request | [973, 978, 981, 2005, 10000, 10001, 10005, 10010, 14023, 20002, 20024, 20028, 38054, 38056, 42002, 42003, 42004](https://developer.mastercard.com/open-finance-us/documentation/errors/request/invalidrequest/index.md) | | 500 | Other Connection issues | [417, 500, 525, 979, 982, 111, 112, 113, 114, 116, 117, 119, 122, 123, 124, 125, 126, 127, 128, 129, 130, 133, 136, 138, 145, 151, 155, 156, 164, 167, 168, 170, 178, 180, 184, 198, 11000](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md) | | 500 | Existing Connection Interruptions | [101, 102, 104, 105, 905, 906, 907, 908, 909, 910, 911, 970, 2018, 418, 419, 575, 579, 580](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/connection-interrupt/existing-connection-interruptions/index.md) | | 4xx | Unexpected login error | [179, 1008, 2040](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/unexpectedloginerror/unexpectedloginerror/index.md) | | 500 | Bad Request | [20025](https://developer.mastercard.com/open-finance-us/documentation/errors/request/badrequest/index.md#20025) | | 400/500 | Unexpected System Issue | [10030](https://developer.mastercard.com/open-finance-us/documentation/errors/request/unexpected-system-issue/index.md#10030) | | 500, 401 | Consent Authorization | [2001, 2003, 2006, 2017, 2024, 2026, 2028, 2030, 2031, 2035, 2036, 2037, 2038, 2039, 10013, 12005, 24019](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/consentauth/consentauthorization/index.md) | | 500 | New Connection In Progress | [900, 901, 902, 903, 904, 915, 916](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/connection-ip/900-901-903-904-916/index.md) | ## Other Data Connect Errors {#other-data-connect-errors} The possible errors can be categorized as follows: * **OAuth connections** enable Financial Institutions to authenticate customers securely without storing or transmitting usernames and passwords. OAuth connections speed up data access, enhance API security, and enable customers to manage account permissions. Customers can disconnect at any time and seamlessly access their accounts even after changing credentials. The following errors relate to OAuth connections: | HTTP Status Code | Error Theme | Error Codes | |------------------|-------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | 500 | Additional Information needed from the end user | [38053](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/addinfo/106-108-109-961-959/index.md#38053) | | 500, 404 | Connection Not Supported | [920, 921, 922, 923, 924, 925, 926, 927, 928, 929, 950, 960, 972, 973, 975, 976, 2032, 1403, 1415, 10106, 14006, 14020, 4041, 10008, 201000](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/connection-not-supported/index.md) | | 401, 500 | Consent Authorization | [2003, 2031, 2006, 2017, 2024, 2026, 2028, 2030, 2035](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/consentauth/consentauthorization/index.md) | | 401 | Unexpected login error | [179, 1008, 2040](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/unexpectedloginerror/unexpectedloginerror/index.md) | | 400, 403 | Invalid Request | [973, 978, 981, 2005, 10000, 10001, 10005, 10010, 14023, 20002, 20024, 20028, 38054, 38056, 42002, 42003, 42004](https://developer.mastercard.com/open-finance-us/documentation/errors/request/invalidrequest/index.md) | | 409, 500 | Account Migration Error | [20007, 20009](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/accounts-not-migrated/index.md) | | 500 | Item Not Found | [14006](https://developer.mastercard.com/open-finance-us/documentation/errors/request/item-not-found/index.md#14006) | | 400/ 500 | Unexpected System Issue | [10030](https://developer.mastercard.com/open-finance-us/documentation/errors/request/unexpected-system-issue/index.md#10030) | 500 \| Expired Session \| [974, 194, 331, 1408, 1440, 502, 503, 504, 10022, 10023](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/expiredsession/expiredsession/index.md) 500 \| Bad Request \| [20025](https://developer.mastercard.com/open-finance-us/documentation/errors/request/badrequest/index.md#20025) 500 \| Existing Connection Interruptions \| [2018](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/connection-interrupt/existing-connection-interruptions/index.md#2018) 500 \| Other Connection Issues \| [500](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#500) 500 \| Connection Migration in Progress \| [945, 948](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/connection-migration-inprogress/index.md) * **Errors that can occur while using Data Connect Fix** The table below lists common errors that might be encountered when using the Data Connect Fix flow, which enables the user to sign-in and update their credentials or perform a new MFA challenge. | HTTP Status Code | Error Theme | Error Codes | |--------------------|-----------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | 500 | Account Update Failed | [324](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/324/index.md), [403](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/403/index.md) | | 500/409 | Incomplete Authorization | [931, 938, 940, 185, 187, 12003, 10814, 38007, 50024, 50025](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/incompleteauth/938-940-971-185-187/index.md) | | 500 | Additional Information Needed | [936, 959, 961, 106, 107, 108, 109](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/addinfo/106-108-109-961-959/index.md) | | 500 | Invalid Credentials | [103, 45002, 24303, 110039](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/invalidcredentials/index.md) | | 500 | Bad Request | [20025](https://developer.mastercard.com/open-finance-us/documentation/errors/request/badrequest/index.md#20025) | | 500 | Connection Not Supported | [920, 921, 922, 923, 924, 925, 926, 927, 928, 929, 950, 960, 972, 973, 975, 976, 2032, 1403, 1415, 10106, 14006, 14020, 4041, 10008, 10106, 14006, 201000](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/connection-not-supported/index.md) | | 500 | Data Sync in Progress | [325](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/325/index.md) | | 404, 500 | Item Not Found | [14001](https://developer.mastercard.com/open-finance-us/documentation/errors/request/item-not-found/index.md#14001), [14006](https://developer.mastercard.com/open-finance-us/documentation/errors/request/item-not-found/index.md#14006) | | 202 | Maximum Limit Exceeded | [977, 44000, 44002](https://developer.mastercard.com/open-finance-us/documentation/errors/request/max-limit-exceeded/index.md) | | 401, 4xx, 500 | Expired Session | [974, 194, 331, 1408, 1440, 502, 503, 504, 10022, 10023](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/expiredsession/expiredsession/index.md) | | 503, 400, 404, 403 | Invalid Request | [10005](https://developer.mastercard.com/open-finance-us/documentation/errors/request/invalidrequest/index.md#10005), [20024](https://developer.mastercard.com/open-finance-us/documentation/errors/request/invalidrequest/index.md#20024), [42002](https://developer.mastercard.com/open-finance-us/documentation/errors/request/invalidrequest/index.md#42002), [42003](https://developer.mastercard.com/open-finance-us/documentation/errors/request/invalidrequest/index.md#42003) | | 500 / 400 | Unexpected System Issue | [10030](https://developer.mastercard.com/open-finance-us/documentation/errors/request/unexpected-system-issue/index.md#10030) | | 500 | Unexpected login error | [179, 1008, 2040](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/unexpectedloginerror/unexpectedloginerror/index.md) | | 500 | Other Connection Issues | [500](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#500), [525](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#525), [155, 156, 167](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#unknown-technical-errors), [11000](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#11000) | | 500 | New Connection in Progress | [900, 901, 902, 903, 904, 915, 916](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/connection-ip/900-901-903-904-916/index.md) | | 500 | Existing Connection Interruptions | [101, 102, 104, 105, 905, 906, 907, 908, 909, 910, 911, 970, 2018, 418, 419, 575, 579, 580](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/connection-interrupt/existing-connection-interruptions/index.md) | * **Errors that can occur while refreshing customer accounts** The following errors can occur during account refresh or while dealing with expired sessions, timeouts, session cancellations, encountering unknown errors, connection issues, date stamping, student loan issues, payment routing processing errors, username not available and partner requests. | HTTP Status Code | Error Theme | Error Codes | |------------------|-----------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | 500 | Bad Request | [6004, 20015, 20020, 20025](https://developer.mastercard.com/open-finance-us/documentation/errors/request/badrequest/index.md) | | 500 | Connection not supported | [950](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/connection-not-supported/index.md#950) | | 500 | Existing Connection Interruptions | [575](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/connection-interrupt/existing-connection-interruptions/index.md#575) | | 404 | Invalid Request | [973, 978, 981, 2005, 10000, 10001, 10005, 10010, 14023, 20002, 20024, 20028, 38054, 38056, 42002, 42003, 42004](https://developer.mastercard.com/open-finance-us/documentation/errors/request/invalidrequest/index.md) | | 401, 500 | Consent Authorization | [2001, 2003, 2006, 2017, 2024, 2026, 2028, 2030, 2031, 2035, 2036, 2037, 2038, 2039, 10013, 12005, 24019](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/consentauth/consentauthorization/index.md) | | 404, 500 | Item Not Found | [265, 1007, 12015, 13002, 13004, 14001, 14002, 14003, 14006, 14008, 20000, 20001, 20003, 20017, 20027, 24553, 38008, 38057, 90004, 10046, 10047, 110002](https://developer.mastercard.com/open-finance-us/documentation/errors/request/item-not-found/index.md) | | 500 and 400 | Unexpected System Issue | [990, 991, 992, 993, 994, 995, 996, 997, 998, 1000, 1001, 1002, 1004, 1005, 1009, 1010, 1011, 1012, 14030, 10030, 12001, 12008, 12009, 19000, 20014, 50050, 110015](https://developer.mastercard.com/open-finance-us/documentation/errors/request/unexpected-system-issue/index.md) | | 500 | Other Connection issues | [951, 954](https://developer.mastercard.com/open-finance-us/documentation/errors/institutionerrors/other-connection-issues/index.md#unknown-connection-errors) | | 500 | Invalid Token | [947, 4034](https://developer.mastercard.com/open-finance-us/documentation/errors/accounterrors/invalidtoken/947-2024/index.md) |