Glossary
| Term | Definition |
|---|---|
| API key | Secret string that authenticates the integration with LX CloudPos. |
| CAByS | Goods and Services Catalog. 13-digit fiscal code per product. |
| Clave | Unique 50-digit identifier for the electronic tax document, assigned when it is issued. |
| Comprobante electrónico | Digital tax document (signed XML) issued through Hacienda. |
| Consecutivo | Sequential 20-digit number per document type within the issuer. |
| FE | Electronic Invoice. Type 01. |
| HMAC | Hash-based Message Authentication Code. Webhook signature. |
| Hacienda | Costa Rica’s Ministry of Finance (tax authority). |
| Idempotency-Key | Header that prevents duplicates on POST retries. |
| ind-estado | Status indicator returned by Hacienda in the callback. |
| LX CloudPos | The multi-tenant POS system that provides this API. |
| NC | Credit Note. Type 03. |
| ND | Debit Note. Type 02. |
| nonce | Unique random value per webhook attempt. Used for deduplication. |
| Polling | Pattern of repeatedly querying a status. |
| Rate limit | Limit on requests per unit of time. |
| Scope | Granular permission associated with an API key. |
| TE | Electronic Ticket. Type 04. |
| Tenant | Isolated business space within LX CloudPos. |
| Webhook | HTTP push notification from LX to the integrator. |
| XAdES | XML Advanced Electronic Signatures. XML signature standard. |
| XML v4.4 | Current version of Costa Rica’s official electronic tax document schema. |