Abstract: A method and computer product for mapping an error message to an identifier to enable error reporting is provided. An error message hash vector is associated with a resource ID and a resource module. When an error message is displayed, substrings of text in the message are hashed and matched to a corresponding hash vector. The substrings are defined as text that is between the start of the message and wildcard string (a string that is dynamically inserted at runtime), between a wildcard string and the end of the message, or between two wildcard strings. Based on the hash of these substrings, error messages can be quickly and efficiently mapped to a corresponding resource ID and module, which can then be reported.