The Reference section provides supporting information used throughout the Kumusoft EFRIS API.Unlike the operational endpoints found under Authentication, Taxpayers, Invoicing, Credit Notes, and Stock Management, the resources in this section are intended to help developers understand API responses, interpret system behavior, and troubleshoot integration issues.Use this section when you need to:Understand the meaning of API return codes and error messages.
Identify the underlying EFRIS interface associated with a transaction.
Review supported invoice types, statuses, and classifications.
Understand system-specific constants, enumerations, and validation rules.
Troubleshoot failed requests and unexpected responses.
Contents#
Return Codes#
A comprehensive list of API return codes and their meanings. These codes indicate whether a request was successful and provide additional information when an error occurs.Invoice Types#
Descriptions of the various invoice types supported by the platform and their intended use cases.Need Help?#
If you encounter a return code or status that is not covered in this documentation, please contact us with the request identifier and transaction details to assist with investigation.Note: The Kumusoft EFRIS API simplifies and abstracts many of the complexities of direct EFRIS integration, including encryption, signature generation, and protocol-specific implementation details. Most developers can integrate successfully without requiring knowledge of the underlying EFRIS interfaces.
