# Sandbox IRN + E-Way Bill — SUCCESS (API end-to-end)

**Date:** 2026-07-31  
**Executed by:** automated API test (no manual UI click)  
**GSP:** Adaequare sandbox  

## Result: PASS

| Step | Status | Value |
|------|--------|--------|
| Auth | PASS | `/gsp/authenticate` with sandbox app keys |
| e-Invoice (IRN) | **PASS** | Doc `SB260731014440` |
| E-Way Bill by IRN | **PASS** | Auto distance (Distance=0) |

### Generated documents
- **IRN:** `03460a5e4a8c47b64c16821f3d571b98ad0faca9ca2ffa5ba4c4b523e8679be8`
- **Ack No:** `112610255249631`
- **Ack Dt:** `2026-07-31 01:45:00`
- **E-Way Bill No:** `121012159640`
- **EWB Dt:** `2026-07-31 01:45:00`
- **Valid till:** `2026-08-02 23:59:00`
- **Pin-pin distance (NIC):** `286 KM` (Hyderabad 500037 → Vijayawada 520001)

### Credentials used
- Seller GSTIN / user: `36AMBPG7773M002` / `adqgsptsusr1`
- Buyer GSTIN: `37AMBPG7773M002` (AP sandbox)
- APIs: `/test/enriched/ei/api/invoice` and `/test/enriched/ei/api/ewaybill`

### Critical finding for the app
EWB succeeds when **Distance = 0** (NIC auto-calculates).  
Wrong fixed distances (e.g. 100) return **4013**.  
Empty TransId with vehicle (Part B) is OK.

### Code fix applied (needs rebuild/publish)
`InvoiceController.cs`:
- Prefer form distance; allow **0** for auto pin-pin
- Default transporter name for unregistered + vehicle
- Omit empty `TransId` on EWB Part-B payload

Source updated on:
- `D:\ChampionErp_2026\...\InvoiceController.cs`
- `Z:\ChampionErp_2026 (2)\...\InvoiceController.cs`

**Your action:** Rebuild + Publish to `Z:\builds\ChampionERP_Build\`, then UI generate IRN/EWB will follow the same path.

### Evidence files
`Z:\builds\UI_Test_Records\exports\`
- `sandbox_irn_response_*.json`
- `sandbox_ewb_SUCCESS.json`
- `sandbox_ewb_retry_1.json`