# Billing details required when creating transaction for manual collection mode subscription

Billing details need to be set to create a transaction when a subscriptions collection_mode is set to manual.

---

## Example

```json
{
  "error": {
    "type": "request_error",
    "code": "subscription_billing_details_required",
    "detail": "billing_details cannot be null for manual collection mode transaction",
    "documentation_url": "https://developer.paddle.com/errors/subscriptions/subscription_billing_details_required"
  },
  "meta": {
    "request_id": "00000000-0000-0000-0000-000000000000"
  }
}
```

## Details

| Attribute | Value |
| --- | --- |
| Status code | 400 |
| Error code | `subscription_billing_details_required` |
| Error message | billing_details cannot be null for manual collection mode transaction |

## Common causes

- Manually-collected transactions require `billing_details`, but this field isn't set on the subscription.

## Common solutions

- Set `billing_details` against the subscription.