| Account nature different from the reference account | Chart restructured keeping the code but changing the nature. | Adjust the mapping in I051; the error blocks filing (layout 9). |
| More than one reference account for the same cost center | Mapping inherited from before layout 9. | A single reference account per combination of account and cost center (I051). |
| Result closing that does not match | Closing entries different from the result balances. | Check I355 against the type E entries in I200. |
| Chart change without an old-to-new mapping | Second ECD file without the balance transfer. | Fill in I157; the ECF only recovers the second file if it is missing. |
| Zero-balance account with movement outside the mapping | Account zeroed before the chart change and not mapped. | Include in I157 all accounts of the old chart that had movement. |
| Profit or Loss for the Year mapped as a detail account | Transitional calculation account mapped to the reference account. | Nature 09 and no mapping (J050). |
| ECD replaced and ECF not rectified | Replacement without looking at the active ECF. | File a rectifying ECF (article 8 of IN RFB 2.004/2021). |
| Late entry with no adjustment in the ECF | Accounting correction of a prior year with no tax effect. | Rectifying ECF for the year, with the prior-year adjustment lines (M300). |
| Part B that does not match the previous year | Previous ECF rectified without rectifying the following ones. | Recover the active ECF; check E020 and M010. |
| Month with no entry and no balance reported | Active company treated as inactive in the month. | At least one account per month in I155 with zero balances, if there really was no entry. |
| Residual exclusions line used without criteria | Exclusion with no specific line in the ECF. | Use only when there is no specific line; above BRL 20 million and 30% of exclusions, Web Request. |