The following table provides information on the internal CASS error codes. These error codes are only valid if you use internal CASS processing.
| Error Code | Description |
|---|---|
| 4101 | No city, state, and ZIP Code in address. |
| 4102 | No ZIP Code and no city name in address. |
| 4103 | No ZIP Code and no state name in address. |
| 4104 | Unique ZIP Code - no input ZIP. |
| 4211 | Invalid ZIP Code and no city name in address. |
| 4212 | No ZIP Code and invalid city name in address. |
| 4213 | Invalid ZIP Code and invalid city name in address. |
| 4300 | ZIP Code not in Finalist database. |
| 4301 | No street name in input address. |
| 4399 | Blank address record. |
| 4411 | No primary street name found in Finalist database. |
| 4412 | Unable to rank primary street name with certainty. Suggestions may be available. |
| 4421 | Invalid range or house number. |
| 4422 | Incorrect or missing directional. |
| 4423 | Incorrect or missing suffix. |
| 4425 | Incorrect or missing suffix and directional. |
| 4450 | No range in input address. |
| 4451 | Multiple component failure. An address component had multiple options causing the address to fail assignment. See field information in PBFNAddressInfo structure. |
| 4460 | EWS Failure. Address found on EWS table. |
| 4461 | LOT assignment has failed. Address coded successfully but LOT code not assigned. |
| 4500 | Unable to code. If reason for inability to code cannot be determined, this error is issued. |
| 4600 | Undeliverable address in Finalist database. Note: This error code can still be valid with a return code of PBFN_SUCCESS. The combination of the two codes indicates that this is a valid address just not deliverable by USPS standards.
|
| 4801 | Address is locked and will not be processed. |
| 5101 | Warning: Missing apt/suite number. |
| 5102 | Warning: Apt/suite number is invalid or unavailable. |
| 5103 | Warning: Input firm name is missing or invalid. |
| 5104 | Warning: Multiple firms returned for address. |
| 5105 | Warning: Box number is invalid or unavailable. |
| 5200 | Information: Address bypassed counted correct in Process Unassign run. |