| Transaction | Reply Code | Meaning |
|---|---|---|
| Login Metadata Search GetObject Logout | 0 | Operation successful |
| Login | 20022 | Additional login not permitted There is already a user logged in with this user name, and this server does not permit multiple logins. |
| Login | 20036 | Miscellaneous server login error The quoted-string of the body-start-line contains text that SHOULD be displayed to the user |
| Search | 20201 | No Records Found No matching records were found. |
| Search | 20203 | Miscellaneous Search Error The quoted-string of the body-start-line contains text that MAY be displayed to the user. |
| Search | 20206 | Invalid Query Syntax The query could not be understood due to a syntax error. |
| Search | 20208 | Maximum Records Exceeded The specified server limit exceeds the maximum allowed. |
| GetObject | 20400 | Invalid Resource The request could not be understood due to an unknown resource. |
| GetObject | 20401 | Invalid Type The request could not be understood due to an unknown object type for the resource. |
| GetObject | 20402 | Invalid Identifier The identifier does not match the KeyField of any data in the resource. |
| GetObject | 20403 | No Object Found No matching object was found to satisfy the request. |
| GetObject | 20413 | Miscellaneous error The server encountered an internal error. |
| Metadata | 20500 | Invalid Resource The request could not be understood due to an unknown resource. |
| Metadata | 20501 | Invalid Type The request could not be understood due to an unknown metadata type. |
| Metadata | 20502 | Invalid Identifier The identifier is not known inside the specified resource. |
| Metadata | 20503 | No Metadata Found No matching metadata of the type requested was found. |
| Metadata | 20509 | Metadata Unavailable The requested metadata is currently unavailable. |
| Metadata | 20513 | Miscellaneous error The server encountered an internal error. |
| Metadata Search GetObject Logout | 20701 | Not logged in The server did not detect an active login for the session in which the Logout transaction was submitted. |
| Logout | 20702 | Miscellaneous error. The transaction could not be completed. The ReplyText gives additional information. |
Appendix M – Complete List of Metadata Lookups Available
17 October 2025
Resource Metadata-Lookup Property Access Type Property Amenities Property AmenitiesNearby Property Amperage Property Appliances Property ArchitecturalStyle Property BasementDevelopment Property BasementFeatures Property BasementType Property Boards Property BuildingType