# Salesforce ↔ WHMCS Mapping Reference

*Complete field mapping and data transformation reference for order fulfillment workflow.*

## 🗺️ Overview

This document provides the authoritative mapping between Salesforce Order/OrderItem data and WHMCS API parameters for the order fulfillment process.

### Data Flow
```
Salesforce Order/OrderItems → BFF Transformation → WHMCS AddOrder API → WHMCS Services
```

## 📊 Complete Field Mapping

### Order Header Mapping

| Salesforce Field | WHMCS Parameter | Example Value | Type | Notes |
|------------------|-----------------|---------------|------|-------|
| `Order.AccountId` | `clientid` | `1` | int | Resolved via portal mapping table |
| N/A (System) | `paymentmethod` | `"mailin"` | string | **Required by WHMCS API** |
| N/A (System) | `noinvoice` | `true` | bool | Don't create invoice during provisioning |
| N/A (System) | `noemail` | `true` | bool | Don't send emails during provisioning |
| `Order.Id` | Added to notes | `"sfOrderId=8014x000000ABCDXYZ"` | string | For tracking purposes |

### OrderItem Array Mapping

| Salesforce Source | WHMCS Parameter | Example | Type | Transformation |
|-------------------|-----------------|---------|------|----------------|
| `Product2.WH_Product_ID__c` | `pid[]` | `["185", "242", "246"]` | string[] | Convert number to string |
| `Product2.Billing_Cycle__c` | `billingcycle[]` | `["monthly", "onetime", "monthly"]` | string[] | Lowercase transformation |
| `OrderItem.Quantity` | `qty[]` | `[1, 1, 1]` | int[] | Direct mapping |

### Optional Parameters

| Salesforce Source | WHMCS Parameter | Default Value | Notes |
|-------------------|-----------------|---------------|-------|
| N/A | `promocode` | `""` | Not used in provisioning |
| N/A | `configoptions[]` | `["", "", ""]` | Base64 encoded if needed |
| N/A | `customfields[]` | `["", "", ""]` | Base64 encoded if needed |

## 🏷️ Product Mapping Examples

### Internet Products
| Product Name | Salesforce SKU | WH_Product_ID__c | WHMCS pid | Billing_Cycle__c | WHMCS billingcycle |
|--------------|----------------|------------------|-----------|------------------|-------------------|
| Internet Silver (Home 1G) | `INTERNET-SILVER-HOME-1G` | 181 | "181" | "Monthly" | "monthly" |
| Internet Gold (Home 1G) | `INTERNET-GOLD-HOME-1G` | 182 | "182" | "Monthly" | "monthly" |
| Internet Platinum (Home 1G) | `INTERNET-PLATINUM-HOME-1G` | 183 | "183" | "Monthly" | "monthly" |
| Internet Silver (Apartment 1G) | `INTERNET-SILVER-APT-1G` | 184 | "184" | "Monthly" | "monthly" |
| Internet Gold (Apartment 1G) | `INTERNET-GOLD-APT-1G` | 185 | "185" | "Monthly" | "monthly" |
| Internet Platinum (Apartment 1G) | `INTERNET-PLATINUM-APT-1G` | 186 | "186" | "Monthly" | "monthly" |

### Installation Products
| Product Name | Salesforce SKU | WH_Product_ID__c | WHMCS pid | Billing_Cycle__c | WHMCS billingcycle |
|--------------|----------------|------------------|-----------|------------------|-------------------|
| Single Installation | `INTERNET-INSTALL-SINGLE` | 242 | "242" | "One-time" | "onetime" |
| 12-Month Installation | `INTERNET-INSTALL-12M` | 243 | "243" | "One-time" | "onetime" |
| 24-Month Installation | `INTERNET-INSTALL-24M` | 244 | "244" | "One-time" | "onetime" |
| Weekend Installation Fee | `INTERNET-INSTALL-WEEKEND` | 245 | "245" | "One-time" | "onetime" |

### Add-on Products
| Product Name | Salesforce SKU | WH_Product_ID__c | WHMCS pid | Billing_Cycle__c | WHMCS billingcycle |
|--------------|----------------|------------------|-----------|------------------|-------------------|
| Hikari Denwa Service | `INTERNET-ADDON-HOME-PHONE` | 246 | "246" | "Monthly" | "monthly" |
| Hikari Denwa Installation | `INTERNET-ADDON-DENWA-INSTALL` | 247 | "247" | "One-time" | "onetime" |

### VPN Products
| Product Name | Salesforce SKU | WH_Product_ID__c | WHMCS pid | Billing_Cycle__c | WHMCS billingcycle |
|--------------|----------------|------------------|-----------|------------------|-------------------|
| VPN USA (San Francisco) | `VPN-USA-SF` | 33 | "33" | "Monthly" | "monthly" |
| VPN UK (London) | `VPN-UK-LONDON` | 54 | "54" | "Monthly" | "monthly" |
| VPN Activation Fee | `VPN-ACTIVATION` | 37 | "37" | "One-time" | "onetime" |

## 📋 Complete Order Example

### Salesforce Order Structure
```sql
Order {
  Id: "8014x000000ABCDXYZ",
  AccountId: "001xx000004TmiQAAS", 
  Status: "Pending Review",
  Order_Type__c: "Internet"
}

OrderItems [
  {
    Id: "8024x000000DEFGABC",
    Product2: {
      WH_Product_ID__c: 185,
      Billing_Cycle__c: "Monthly",
      SKU: "INTERNET-GOLD-APT-1G"
    },
    Quantity: 1
  },
  {
    Id: "8024x000000HIJKLMN", 
    Product2: {
      WH_Product_ID__c: 242,
      Billing_Cycle__c: "One-time",
      SKU: "INTERNET-INSTALL-SINGLE"
    },
    Quantity: 1
  },
  {
    Id: "8024x000000OPQRSTU",
    Product2: {
      WH_Product_ID__c: 246,
      Billing_Cycle__c: "Monthly", 
      SKU: "INTERNET-ADDON-HOME-PHONE"
    },
    Quantity: 1
  }
]
```

### Transformed WHMCS AddOrder Request
```json
{
  "action": "AddOrder",
  "clientid": 1,
  "paymentmethod": "mailin",
  "pid": ["185", "242", "246"],
  "billingcycle": ["monthly", "onetime", "monthly"],
  "qty": [1, 1, 1],
  "noinvoice": true,
  "noemail": true,
  "promocode": "",
  "configoptions": ["", "", ""],
  "customfields": ["", "", ""]
}
```

### WHMCS AddOrder Response
```json
{
  "result": "success",
  "orderid": 12345,
  "serviceids": "67890,67891,67892",
  "addonids": "",
  "domainids": "",
  "invoiceid": 0
}
```

## 🔄 Status Update Mapping

### Salesforce Order Status Updates

#### During Fulfillment
| Step | Order.Status | Provisioning_Status__c | WHMCS_Order_ID__c | Notes |
|------|-------------|------------------------|-------------------|-------|
| Initial | "Pending Review" | null | null | Customer placed order |
| CS Approval | "Activating" | "In Progress" | null | CS clicked provision |
| WHMCS Created | "Activating" | "In Progress" | "12345" | AddOrder completed |
| Services Active | "Activated" | "Fulfilled" | "12345" | AcceptOrder completed |

#### On Failure
| Step | Order.Status | Provisioning_Status__c | Error Fields | Notes |
|------|-------------|------------------------|--------------|-------|
| Validation Failure | "Draft" | "Failed" | Error_Code__c, Error_Message__c | Revert to draft |
| WHMCS API Failure | "Draft" | "Failed" | Error_Code__c, Error_Message__c | Rollback status |

### OrderItem Status Updates
| Field | Source | Example | Notes |
|-------|--------|---------|-------|
| `WHMCS_Service_ID__c` | AcceptOrder response | "67890" | Individual service ID |
| `Billing_Cycle__c` | Already set | "Monthly" | No change during fulfillment |

## 🔧 Data Transformation Rules

### Billing Cycle Transformation
```typescript
// Salesforce → WHMCS transformation
const billingCycleMap = {
  "Monthly": "monthly",
  "Quarterly": "quarterly", 
  "Semiannually": "semiannually",
  "Annually": "annually",
  "One-time": "onetime",
  "Onetime": "onetime"
};

// Implementation
billingCycle: product.billingCycle.toLowerCase()
```

### Product ID Transformation
```typescript
// Salesforce WH_Product_ID__c (number) → WHMCS pid (string)
productId: product.whmcsProductId.toString()
```

### Client ID Resolution
```typescript
// Order.AccountId → WHMCS clientid via mapping table
const mapping = await mappingsService.findBySfAccountId(order.AccountId);
clientId: mapping.whmcsClientId
```

## 🛡️ Validation Rules

### Required Field Validation
```typescript
// Before WHMCS API call
✅ clientid must be valid WHMCS client
✅ paymentmethod must be valid WHMCS payment method
✅ pid[] must contain valid WHMCS product IDs
✅ billingcycle[] must match WHMCS billing cycles
✅ qty[] must be positive integers
```

### Business Rule Validation
```typescript
// Before provisioning
✅ Order.Status must be "Pending Review" or "Activating"
✅ Order must not already have WHMCS_Order_ID__c
✅ Client must have valid payment method in WHMCS
✅ All products must have WH_Product_ID__c mapping
```

## 📝 Implementation Notes

### Array Handling
- **WHMCS expects arrays**: Use `pid[]`, `billingcycle[]`, `qty[]` format
- **Order matters**: Arrays must be in same order (pid[0] matches billingcycle[0])
- **Empty values**: Use empty strings `""` for optional array elements

### Serialization (Advanced)
```typescript
// For configoptions[] and customfields[] if needed
function serializeForWhmcs(data: Record<string, string>): string {
  const serialized = phpSerialize(data);
  return Buffer.from(serialized).toString('base64');
}

// PHP serialize format: a:2:{s:3:"key";s:5:"value";}
```

### Error Handling
```typescript
// WHMCS API error responses
{
  "result": "error",
  "message": "Client ID Not Found"
}

// Map to structured error codes
WHMCS_CLIENT_NOT_FOUND → ORDER_NOT_FOUND
WHMCS_PRODUCT_INVALID → MAPPING_ERROR
WHMCS_API_ERROR → WHMCS_ERROR
```

This mapping reference ensures consistent data transformation and provides the complete picture for troubleshooting and maintenance.