Excel, SUNAT's SEE-SOL portal, and loose spreadsheets work — until someone invoices twice with the same number, or the certificate expires without anyone noticing. This is what changes when you run it all from one panel.
| Manual (Excel + SEE-SOL) | factsimil | |
|---|---|---|
| Issuing a receipt | SUNAT's SEE-SOL portal, one at a time, by hand. | From the panel or by API — in seconds, with automatic validation. |
| Digital signature | Depends on someone remembering to upload and renew the certificate on time. | Automatic on every document. The certificate is encrypted at rest. |
| Series numbering | Real risk of gaps or duplicates if two people invoice at the same time. | Sequential, concurrency-safe — no gaps, no duplicates. |
| Electronic ledgers (PLE) | A separate spreadsheet, rebuilt from scratch every month. | Built from the same panel — Peru's standard chart of accounts (PCGE) already loaded. |
| SIRE (RCE / RVIE) | Another spreadsheet, another format, another source of error. | A dedicated module, using the same data you already entered. |
| Inventory (Kardex) | Manual weighted-average cost calculation — easy to fall behind on. | Recalculates on its own with every purchase linked to the product. |
| Receivables and payables | Yet another sheet, copy-pasted from invoices. | A panel that builds itself from what you already invoiced and purchased. |
| When a SUNAT rule changes | Someone has to find out, understand it, and adjust everything by hand. | It's updated in the product — not in your spreadsheet. |
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