Data errors are defined as responses 200 for the Data API where status=FAILED. As part of the the response you will receive granular_status_code and status_additional_info. See the documentation on the Data API for more detail.

StatusDescriptionWhat to do
UNSEEN_BANK_ERRORYour bank has reported an error, please try again later. If this error continues, please contact customer service.Wait for some time before making a new request as this might be an intermittent issue. If the issue persists, contact Lean.
BANK_MAINTENANCEYour bank is currently undergoing technical maintenance and online services are unavailable. Please try again later.Wait for some time before making a new request. This is outside of Lean's control but should resolve itself within a few hours.
BANK_ISSUEYour bank is currently experiencing technological problems. Please try again later.Wait for some time before making a new request. This is outside of Lean's control but should resolve itself within a few hours.
LEAN_ERRORWe are unable to process this request, please try again later. If you continue to see this error, please get in touch with customer support with the support code below.Wait for some time before making a new request as this might be an intermittent issue. If the issue persists, contact Lean.
DISABLED_BY_LEANThis functionality has been temporarily disabled for this bank. Please try again later.You should have received a webhook indicating the bank has been disabled. You should disable it on your side and reenable it once you receive a webhook indicating the bank has been reenabled.
DISABLED_BY_CLIENTThis application has temporarily disabled functionality for this bank. Please try again later.Reenable the bank from the Lean dashboard.
DUPLICATED_REQUESTA request to this endpoint has already been made for the same entity and associated parameters. Please wait for the response or wait for one minute before making another request.Wait for 1 minute before repeating the same request.