Negative Inventory Error in Aspel SAE
Negative stock in Aspel SAE causes errors in electronic invoicing (CFDI), accounting discrepancies, and incorrect inventory reports.
Prerequisites
- Aspel SAE version 9.0+.
- Database backup before making corrections.
Common Causes
1. Invoices Without Inventory Deduction
In Aspel SAE, invoices don’t always deduct from inventory automatically—it depends on whether dispatch notes (remisiones) are used.
2. Unrecorded Purchases
If you receive goods physically but don’t register the purchase, subsequent sales will push stock negative.
3. Incorrect Initial Inventory
If the initial stock count was lower than reality, sales will generate negatives.
4. Duplicate Exit Movements
Reprinting or resending documents can duplicate inventory exits.
Prevention
| Action | Benefit |
|---|---|
| Disable “Allow negative stock” | Blocks invoices when stock is insufficient |
| Monthly physical inventory reconciliation | Catches discrepancies early |
| Use Order → Dispatch → Invoice flow | Ensures correct inventory deduction |