<?php

namespace OpsWay\ZohoBooks\Api;

class ItemAdjustments extends BaseApi
{
    const API_PATH = 'inventoryadjustments';
    const API_KEY = 'inventoryadjustment';
}

<?php

namespace OpsWay\ZohoBooks\Api;

class ItemAdjustments extends BaseApi
{
    const API_PATH = 'inventoryadjustments';
    const API_KEY = 'inventory_adjustment';
}

Fix Inventory Adjustment api key
Fix Inventory Adjustment api key
