Business Processes and Rules: Siebel eBusiness Application Integration Volume IV > Data Mapping Using Scripts > Exception Handling Considerations >
Error Codes and Error Symbols
All errors each have an error code, which is a unique integer. A subset of errors also each have an error symbol. An error symbol is a text string that allows you to reference specific error codes in Siebel Workflow and in Siebel eScript. Errors that do not have an error symbol cannot be used for branch decisions and cannot be raised as user errors.
Error codes returned by a data transformation service may or may not have an associated error symbol. User errors will have error symbols. Currently, errors generated by Data Transformation Functions have error symbols. Errors occurring outside the data transformation framework often will not have error symbols.