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SRI technical specification 2.34 for electronic documents
The official SRI page publishes technical-specification version 2.34, updated in July 2026.
What the technical specification is
It is the documentation describing structures, catalogs, validations, and technical rules used to generate electronic documents. It should be read together with the XSD schemas and regulations published by the SRI.
Version reviewed
When checked on November 5, 2026, the official SRI page showed offline-schema technical-specification version 2.34, updated in July 2026. Confirm the version number again before implementing it.
What to validate in an invoicing system
Review the XML structure, catalogs, mandatory fields, signature, endpoints, and responses. An invoice that looks correct may be rejected when its XML does not meet the schema or a current validation.
Updates without interrupting sales
Test changes in the appropriate environment, retain error traceability, and prepare a controlled update mechanism. Never treat test-environment documents as if they had tax validity.
Educational information reviewed against official sources available on November 5, 2026. Obligations depend on the RUC, tax regime, and operation. Confirm your case with the SRI or a tax professional.