ldc-mesbr-app/app/Models/CouponLog.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class CouponLog extends Model
{
    use HasFactory;

    /**
     * Fillable
     *
     * @var string[]
     */
    protected $fillable = [
        'coupon_id',
        'campaign_id',
        'customer_id'
    ];
}