# Error Remediation Categories
source: https://developer.mastercard.com/open-finance-au/documentation/errors/error-remediation-categories/index.md

Each error code includes a recommended remediation, which is provided in the documentation. These recommendations outline suggested actions you can take when an error is encountered during either the user flow or an aggregation call.

To get the most value from these remediations, we recommend aligning your internal remediation flows with our standardized remediation categories. This means that when an error is returned with remediation category "A," your application should route the user into your corresponding category A remediation flow. This allows your system to reliably handle unexpected or less-frequent errors by leveraging consistent category-level logic.

In addition to implementing the category-based flows, you should also review the [Most Common Errors](https://developer.mastercard.com/open-finance-au/documentation/errors/most-common/index.md) page and build dedicated remediation flows for those specific error codes. These common error codes represent the highest-frequency scenarios and benefit from tailored handling rather than generic category logic. You should also keep track of the most common error codes you encounter, as they may not exactly match the Most Common Errors page.

|                     Category                      |                                                                                                                                                  Description and Guidance                                                                                                                                                   |
|---------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Retry Later                                       | Errors that require the user to retry later are the result of a temporary issue at financial institution or platform. There is no action the needs to be taken nor is there any action that can be taken. The user must try again at some time in the future when the issue has been resolved by the financial institution. |
| Re-Authenticate or Provide Additional information | Re-authentication errors require that the end user re-enter their credentials, re-authorize a connection, or provide additional details to proceed.                                                                                                                                                                         |
| Invalid Input                                     | Invalid input can include malformed data, incorrect app keys, or an expired session, among other bad input. The developer must correct the invalid data for the workflow to continue.                                                                                                                                       |
| Verify Account or Data State                      | Verify account or data errors can occur when an account or entity referenced no longer exists, cannot be found, or has other issues. You need to verify the identifiers or connections to enable to work flow.                                                                                                              |
| Report or Escalate for Investigation              | Esscalation errors are a result of unexpected or unknown system issues where remediation cannot be determined.                                                                                                                                                                                                              |
| Data Connect Fix                                  | Errors in this category can be rectified using Data Connect Fix. Note that Data Connect Fix only applies to these errors, not to errors in other remediation categories.                                                                                                                                                    |
| User try again now                                | These errors can be resolved when the User immediately retries the action immediately, either due to incorrect input or a technical issue.                                                                                                                                                                                  |