# Chapter 4.3 - Errors

Source: https://developer.avalara.com/products/communications/integration-guides/dev-guide_geo_soap/reference/errors/

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### Authentication

Error Code

Message

Summary

HTTP 500 Internal Server Error

[An error occurred when verifying security for the message](/communications/dev-guide_geo_soap/reference/errors/invalid-security/)

Problems with `Security` object

HTTP 500 Internal Server Error

[User not found!](/communications/dev-guide_geo_soap/reference/errors/user-not-found/)

Invalid username

HTTP 500 Internal Server Error

[Password is invalid!](/communications/dev-guide_geo_soap/reference/errors/password-is-invalid/)

Invalid password

HTTP 500 Internal Server Error

[USER VALIDATION ERROR - userName or password is null](/communications/dev-guide_geo_soap/reference/errors/user-validation-error/)

Password field missing in the header

HTTP 500 Internal Server Error

[User account is inactive!](/communications/dev-guide_geo_soap/reference/errors/user-account-is-inactive/)

User account is inactive

### Request

Error Code

Message

Summary

HTTP 400 Bad Request

[400 Bad Request](/communications/dev-guide_geo_soap/reference/errors/400-bad-request/)

Format of the XML request is incorrect

HTTP 500 Internal Server Error

[The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter http://tempuri.org/:inputAddress.](/communications/dev-guide_geo_soap/reference/errors/deserialization-failed/)

Format of the XML request is incorrect

HTTP 200 OK

[No error message](/communications/dev-guide_geo_soap/reference/errors/empty-result/)

No error message returned but the geocode result is empty

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