> For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://docs.middesk.com/accelerate-onboarding/reason-codes/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.middesk.com/_mcp/server. # Reason codes > The reason codes that Signal uses to explain its business verification scores across identification, verification, and evaluation categories. Signal's reason codes provide detailed explanations for business verification scores across identification, verification, and evaluation categories. Signal uses these reason codes in its scoring. ## Identification codes | Category | Code | Description | | -------------- | ---- | ------------------------------------------------------------------------------ | | identification | I301 | The submitted business name is correct | | identification | I302 | The submitted business name has minor typos | | identification | I304 | The submitted business name has material differences | | identification | I306 | Unable to verify the submitted business name | | identification | I102 | The submitted tax ID belongs to the business | | identification | I103 | The submitted tax ID does not belong to the business | | identification | I104 | The submitted tax ID belongs to a submitted person | | identification | I105 | The submitted tax ID is not known to belong to the business | | identification | I107 | The submitted address belongs to the business | | identification | I108 | The submitted address is within an approximate distance to the address on-file | | identification | I109 | The submitted address has minor typos but expected to be the same address | | identification | I111 | The submitted address does not belong to the business | | identification | I112 | Unable to verify the submitted address | | identification | I601 | All submitted people belong to the business | | identification | I602 | Some submitted people belong to the business | | identification | I603 | Additional people are known to belong to the business | | identification | I604 | None of the submitted people belong to the business | | identification | I605 | Unable to verify the submitted people | | identification | I201 | There are no OFAC or sanctions results for the business | | identification | I202 | There are no OFAC or sanctions results for the people submitted | | identification | I203 | There are OFAC or sanctions results for the business | | identification | I204 | There are OFAC or sanctions results for the people submitted | | identification | I205 | There are OFAC or sanctions results for the people retrieved | | identification | I705 | The submitted business information is low quality | ## Verification codes | Category | Code | Description | | ------------ | ----- | ------------------------------------------------------------------------------------ | | verification | V101 | The business is registered in multiple states | | verification | V102 | The business is registered in only a single state | | verification | V103 | The business is registered in a common formation state | | verification | V104 | The business is not registered with any states | | verification | V501 | The SOS registration for all states is active and in good standing | | verification | V502 | The SOS registration for some states is active and in good standing | | verification | V503 | The SOS registration for all states is inactive or in bad standing | | verification | V504 | The domestic registration is active and in good standing | | verification | V505 | All SOS registrations for the submitted address(es) are active and in good standing | | verification | V748 | At least one submitted address is a residential address | | verification | V749 | At least one submitted address is a commercial address | | verification | V750 | At least one submitted address is a registered agent address | | verification | V751 | At least one submitted address is a CMRA | | verification | V752 | At least one submitted address is a private mailbox | | verification | V753 | At least one submitted address is unable to receive mail | | verification | V754 | At least one submitted address is a PO Box | | verification | V755 | At least one submitted address is a virtual address | | verification | V801 | One or more submitted business locations have been used by 1-20 other businesses | | verification | V802 | One or more submitted business locations have been used by 21-100 other businesses | | verification | V803 | One or more submitted business locations have been used by over 100 other businesses | | verification | V901 | This business does not operate in a high-risk industry | | verification | V902 | Business operates in Agriculture, Forestry, Fishing, and Hunting industry | | verification | V903 | Business operates in Mining industry | | verification | V904 | Business operates in Utilities industry | | verification | V905 | Business operates in Construction industry | | verification | V906 | Business operates in Manufacturing industry | | verification | V907 | Business operates in Wholesale Trade industry | | verification | V908 | Business operates in Retail Trade industry | | verification | V909 | Business operates in Transportation and Warehousing industry | | verification | V910 | Business operates in Information industry | | verification | V911 | Business operates in Finance and Insurance industry | | verification | V912 | Business operates in Real Estate and Rental and Leasing industry | | verification | V913 | Business operates in Professional, Scientific, and Technical Services industry | | verification | V914 | Business operates in Management of Companies and Enterprises industry | | verification | V915 | Business operates in Administrative and Support and Waste Management industry | | verification | V916 | Business operates in Educational Services industry | | verification | V917 | Business operates in Health Care and Social Assistance industry | | verification | V918 | Business operates in Arts, Entertainment, and Recreation industry | | verification | V919 | Business operates in Accommodation and Food Services industry | | verification | V920 | Business operates in Other Services (except Public Administration) industry | | verification | V921 | Business operates in Public Administration industry | | verification | V950 | This business operates in a high-risk industry | | verification | V010 | The business is a corporation | | verification | V011 | The business is an LLC | | verification | V012 | The business is a nonprofit | | verification | V013 | The business is a partnership | | verification | V014 | The business is a trust | | verification | V1001 | The business's website is online | | verification | V1002 | The business's web presence quality is high | | verification | V1003 | The business's web presence quality is moderate | | verification | V1004 | The business's website has been purchased but has no content | | verification | V1005 | This business's website is offline | | verification | V1006 | The business's web presence quality is low | | verification | V1101 | The submitted business name matches the name on the website | | verification | V1102 | The submitted business name is similar to the name on the website | | verification | V1103 | The submitted business name has material differences from the name on the website | | verification | V1104 | Unable to verify the business name from the website | | verification | V1201 | At least one submitted address matches an address from the website | | verification | V1202 | At least one submitted address is similar to an address from the website | | verification | V1203 | At least one submitted address has material differences from the website | | verification | V1204 | Unable to verify the address from the website | | verification | V1301 | The submitted people match the website | | verification | V1302 | The website references people that were not submitted | | verification | V1303 | Unable to verify the people from the website | | verification | V1401 | Phone number is present on the website | | verification | V1402 | Email address is present on the website | ## Evaluation codes | Category | Code | Description | | ---------- | ----- | --------------------------------------------- | | evaluation | E500 | The business was formed more than 2 years ago | | evaluation | E501 | The business was formed in the last 2 years | | evaluation | E502 | The business was formed in the last month | | evaluation | E503 | The business was formed in the last year | | evaluation | E1101 | The business has never filed for bankruptcy | | evaluation | E1102 | The business has filed for bankruptcy | | evaluation | E1201 | The business is on the TIN denylist | > **Get a demo** > > Contact your account manager or [contact sales](https://www.middesk.com/contact-sales) to inquire about access. > The reason codes that Signal uses to explain its business verification scores across identification, verification, and evaluation categories.