Update Budget Rule With Provider Rules

Update an existing budget rule using the simplified provider_rules format.

This endpoint updates a budget rule with the same format as creation:

• JSON string or array for provider_rules
• Will replace ALL existing provider rules with the new ones
• Will update or create the invoice rule

Example:

{
  "budget_category": "Assistance with Social, Economic and Community Participation",
  "effective_date": "2024-02-01",
  "expiry_date": "2026-02-01", 
  "provider_rules": "[{"amount":500,"support_item":"04_049_0104_1_1"},{"amount":1000,"support_item":"04_402_0104_1_1"}]",
  "invoice_rule": {
    "name": "Budget Rule",
    "target": "ndis_line_items",
    "rule_message": "Budget rule exceeded, please check"
  }
}