MAF Errors and Warnings

MAF can detect dozens of different kinds of errors when checking an address. A single address can easily have multiple errors.

Error numbers 1.x through 7.x are serious enough to prevent MAF from finding an address in the database. Error numbers 8.x through 14.x are only warnings because they are not serious enough to prevent MAF from finding an address.

Error 1.1: State not found. The input record state is not a valid two-character abbreviation. Try providing a ZIP Code instead.

Error 2.1: City not found. The input record city is not in MAF's list of cities for the input record state. Try providing a ZIP Code instead of a city.

Error 3.1: Street not found. The input record street is not in MAF's list of streets for the input record city. Usually caused by misspelled street names that MAF can't guess how to correctly spell.

Error 4.1: Address not found. The input record does not have an address that can be found in MAF's list of addresses for the input record street.

Error 5.1: ZIP code unavailable. The address is in the database, but no ZIP Code is listed.

Error 5.2: +4 unavailable. A complete ZIP+4 code is not available, because the address does not receive mail. MAF will provide the correct five-digit ZIP Code.

Error 6.1: Multiple streets match. The input record is ambiguous, because more than one street name in the database matches the input address, and there is not enough information to let MAF choose from between the multiple choices. For example, if the database lists both 100 EAST MAIN ST and 100 WEST MAIN ST, then the input 100 MAIN ST might be considered a multiple match.

Error 6.2: Multiple addresses match. The MAF database is ambiguous, because more than one database record matches the input address.

Error 7.1: Time ran out. There wasn't enough time to process the request. Trying again or simplifying the address may avoid this problem.

Warning 9.1: State determined from city. The input record state is not a valid two character abbreviation, but MAF could determine a valid state from the input record's city name.

Warning 9.2: State determined from ZIP. The input record state is not a valid two character abbreviation, but MAF could determine a valid state from the input record's ZIP Code.

Warning 10.1: City phonetic match used. The input record city is not correct, but was matched to a phonetically equivalent city name by MAF.

Warning 10.2: City determined from ZIP. The input record city is not correct, but MAF could determine a valid city from the input record's ZIP Code.

Warning 10.3: Acceptable city name used. The input record city is not acceptable for addressing purposes. MAF has standardized the city to an allowable name.

Warning 11.1: Street phonetic match used. The input record street is not correct, but was matched to a phonetically equivalent street name by MAF.

Warning 11.2: Predirection dropped. A street name like N MAIN ST was standardized to MAIN ST.

Warning 11.3: Predirection added. A street name like MAIN ST was standardized to N MAIN ST.

Warning 11.4: Suffix dropped. A street name like BROADWAY AVE was standardized to BROADWAY.

Warning 11.5: Suffix added. A street name like MAIN was standardized to MAIN ST.

Warning 11.6: Postdirection dropped. A street name like MAIN ST N was standardized to MAIN ST.

Warning 11.7: Postdirection added. A street name like MAIN ST was standardized to MAIN ST N.

Warning 11.8: Predirection standardized. A street name like NORTH MAIN ST was standardized to N MAIN ST.

Warning 11.9: Street standardized. Words in a street name were standardized, such as THIRD ST to 3RD ST or 3 AVE to 3RD AVE.

Warning 11.10: Suffix standardized. A street name like MAIN STREET was standardized to MAIN ST.

Warning 11.11: Postdirection standardized. A street name like MAIN ST NORTH was standardized to MAIN ST N.

Warning 11.12: Street missing. The input record's address field was empty.

Warning 12.1: Unit standardized. An address like 5 MAIN ST SUITE A was standardized to 5 MAIN ST STE A.

Warning 12.2: Unit missing. The ZIP+4 database indicates the address should have a unit like an apartment or suite, but none was specified in the input record.

Warning 12.3: Unit not found. A unit such as an apartment or suite was specified in the input record, but no units at the address were found in the MAF database.

Warning 12.4: Unit unverified. A unit such as an apartment or suite was specified in the input record, and the MAF database indicates units exist at the address, but the input unit is not listed.

Warning 13.1: Leftovers found. The input record address contained words MAF could not guess how to use.

Warning 14.1: ZIP not found. MAF tried to determine the correct city or state name from the input record ZIP Code, but the ZIP is not in the database's list of valid ZIP codes.

Warning 14.2: ZIP changed. The input record has a ZIP Code, but the correct five-digit ZIP Code for the address is different.

Warning 14.3: +4 changed. The input record has a +4 code, but the correct +4 code for the address is different.


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