> ## Documentation Index
> Fetch the complete documentation index at: https://docs.waffo.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Update Subscription Product

> Update a subscription product's content with automatic immutable versioning

Update a subscription product's content. If content has changed, a new immutable version is created automatically. If the content is identical to the current version, no new version is created.

```
POST /v1/actions/subscription-product/update-product
```

**Authentication:** API Key

## Request Body

| Field           | Type           | Required | Description                                                                                     |
| --------------- | -------------- | -------- | ----------------------------------------------------------------------------------------------- |
| `id`            | string         | Yes      | Product ID (`PROD_xxx` format)                                                                  |
| `name`          | string         | No       | Updated product name (max 64 chars)                                                             |
| `billingPeriod` | string         | No       | `weekly`, `monthly`, `quarterly`, or `yearly`                                                   |
| `prices`        | object         | No       | Updated multi-currency pricing                                                                  |
| `description`   | string \| null | No       | Updated description (pass `null` or `""` to clear)                                              |
| `media`         | array          | No       | Updated media                                                                                   |
| `successUrl`    | string \| null | No       | Updated redirect URL (max 512 chars, must be a valid http(s) URL; pass `null` or `""` to clear) |
| `metadata`      | object         | No       | Updated metadata (may include `trialDays`)                                                      |

## Example Request

<CodeGroup>
  ```typescript SDK theme={"system"}
  const { product } = await client.subscriptionProducts.update({
    id: "PROD_3F7H2J5L8N1Q4S6U",
    name: "Pro Plan v2",
    billingPeriod: BillingPeriod.Monthly,
    prices: {
      USD: { amount: "39.00", taxIncluded: false, taxCategory: TaxCategory.SaaS },
      EUR: { amount: "36.00", taxIncluded: false, taxCategory: TaxCategory.SaaS },
    },
    metadata: { trialDays: 7 },
  });
  ```

  ```typescript TypeScript (fetch) theme={"system"}
  // Uses callApi() helper from authentication.mdx
  const result = await callApi("POST", "/v1/actions/subscription-product/update-product", {
    id: "PROD_3F7H2J5L8N1Q4S6U",
    name: "Pro Plan v2",
    billingPeriod: "monthly",
    prices: {
      USD: { amount: "39.00", taxIncluded: false, taxCategory: "saas" },
      EUR: { amount: "36.00", taxIncluded: false, taxCategory: "saas" },
    },
    metadata: { trialDays: 7 },
  });
  console.log(result.data);
  ```

  ```java Java theme={"system"}
  // Uses callApi() helper from authentication.mdx
  String body = """
      {"id":"PROD_3F7H2J5L8N1Q4S6U","name":"Pro Plan v2","billingPeriod":"monthly","prices":{"USD":{"amount":"39.00","taxIncluded":false,"taxCategory":"saas"},"EUR":{"amount":"36.00","taxIncluded":false,"taxCategory":"saas"}},"metadata":{"trialDays":7}}""";

  String response = callApi("POST", "/v1/actions/subscription-product/update-product", body);
  System.out.println(response);
  ```

  ```python Python theme={"system"}
  # Uses call_api() helper from authentication.mdx
  result = call_api("POST", "/v1/actions/subscription-product/update-product", {
      "id": "PROD_3F7H2J5L8N1Q4S6U",
      "name": "Pro Plan v2",
      "billingPeriod": "monthly",
      "prices": {
          "USD": {"amount": "39.00", "taxIncluded": False, "taxCategory": "saas"},
          "EUR": {"amount": "36.00", "taxIncluded": False, "taxCategory": "saas"},
      },
      "metadata": {"trialDays": 7},
  })
  print(result["data"])
  ```

  ```go Go theme={"system"}
  // Uses callAPI() helper from authentication.mdx
  body := map[string]interface{}{
      "id":            "PROD_3F7H2J5L8N1Q4S6U",
      "name":          "Pro Plan v2",
      "billingPeriod": "monthly",
      "prices": map[string]interface{}{
          "USD": map[string]interface{}{"amount": "39.00", "taxIncluded": false, "taxCategory": "saas"},
          "EUR": map[string]interface{}{"amount": "36.00", "taxIncluded": false, "taxCategory": "saas"},
      },
      "metadata": map[string]interface{}{"trialDays": 7},
  }
  result, err := callAPI("POST", "/v1/actions/subscription-product/update-product", body)
  if err != nil {
      log.Fatal(err)
  }
  fmt.Println(string(result))
  ```

  ```rust Rust theme={"system"}
  // Uses call_api() helper from authentication.mdx
  let body = serde_json::json!({
      "id": "PROD_3F7H2J5L8N1Q4S6U",
      "name": "Pro Plan v2",
      "billingPeriod": "monthly",
      "prices": {
          "USD": {"amount": "39.00", "taxIncluded": false, "taxCategory": "saas"},
          "EUR": {"amount": "36.00", "taxIncluded": false, "taxCategory": "saas"}
      },
      "metadata": {"trialDays": 7}
  });
  let result = call_api("POST", "/v1/actions/subscription-product/update-product", &body).await?;
  println!("{}", result);
  ```

  ```c C theme={"system"}
  /* Uses call_api() helper from authentication.mdx */
  const char *body = "{\"id\":\"PROD_3F7H2J5L8N1Q4S6U\",\"name\":\"Pro Plan v2\",\"billingPeriod\":\"monthly\",\"prices\":{\"USD\":{\"amount\":\"39.00\",\"taxIncluded\":false,\"taxCategory\":\"saas\"},\"EUR\":{\"amount\":\"36.00\",\"taxIncluded\":false,\"taxCategory\":\"saas\"}},\"metadata\":{\"trialDays\":7}}";
  char *response = call_api("POST", "/v1/actions/subscription-product/update-product", body);
  printf("%s\n", response);
  free(response);
  ```

  ```cpp C++ theme={"system"}
  // Uses callApi() helper from authentication.mdx
  std::string body = R"({"id":"PROD_3F7H2J5L8N1Q4S6U","name":"Pro Plan v2","billingPeriod":"monthly","prices":{"USD":{"amount":"39.00","taxIncluded":false,"taxCategory":"saas"},"EUR":{"amount":"36.00","taxIncluded":false,"taxCategory":"saas"}},"metadata":{"trialDays":7}})";
  std::string response = callApi("POST", "/v1/actions/subscription-product/update-product", body);
  std::cout << response << std::endl;
  ```

  ```bash cURL theme={"system"}
  MERCHANT_ID="MER_2aUyqjCzEIiEcYMKj7TZtw"
  TIMESTAMP=$(date +%s)
  BODY='{
    "id": "PROD_3F7H2J5L8N1Q4S6U",
    "name": "Pro Plan v2",
    "billingPeriod": "monthly",
    "prices": {
      "USD": { "amount": "39.00", "taxIncluded": false, "taxCategory": "saas" },
      "EUR": { "amount": "36.00", "taxIncluded": false, "taxCategory": "saas" }
    },
    "metadata": { "trialDays": 7 }
  }'
  BODY_HASH=$(echo -n "$BODY" | openssl dgst -sha256 -binary | base64 -w 0)
  CANONICAL_REQUEST="POST
  /v1/actions/subscription-product/update-product
  $TIMESTAMP
  $BODY_HASH"

  SIGNATURE=$(echo -n "$CANONICAL_REQUEST" | openssl dgst -sha256 -sign private_key.pem | base64 -w 0)

  curl -X POST "https://api.waffo.ai/v1/actions/subscription-product/update-product" \
    -H "Content-Type: application/json" \
    -H "X-Merchant-Id: $MERCHANT_ID" \
    -H "X-Timestamp: $TIMESTAMP" \
    -H "X-Signature: $SIGNATURE" \
    -d "$BODY"
  ```

  ```bash wget theme={"system"}
  MERCHANT_ID="MER_2aUyqjCzEIiEcYMKj7TZtw"
  TIMESTAMP=$(date +%s)
  BODY='{
    "id": "PROD_3F7H2J5L8N1Q4S6U",
    "name": "Pro Plan v2",
    "billingPeriod": "monthly",
    "prices": {
      "USD": { "amount": "39.00", "taxIncluded": false, "taxCategory": "saas" },
      "EUR": { "amount": "36.00", "taxIncluded": false, "taxCategory": "saas" }
    },
    "metadata": { "trialDays": 7 }
  }'
  BODY_HASH=$(echo -n "$BODY" | openssl dgst -sha256 -binary | base64 -w 0)
  CANONICAL_REQUEST="POST
  /v1/actions/subscription-product/update-product
  $TIMESTAMP
  $BODY_HASH"

  SIGNATURE=$(echo -n "$CANONICAL_REQUEST" | openssl dgst -sha256 -sign private_key.pem | base64 -w 0)

  wget -qO- "https://api.waffo.ai/v1/actions/subscription-product/update-product" \
    --header="Content-Type: application/json" \
    --header="X-Merchant-Id: $MERCHANT_ID" \
    --header="X-Timestamp: $TIMESTAMP" \
    --header="X-Signature: $SIGNATURE" \
    --post-data="$BODY"
  ```
</CodeGroup>

## Success Response (200)

```json theme={"system"}
{
  "data": {
    "product": {
      "id": "PROD_3F7H2J5L8N1Q4S6U",
      "storeId": "STO_2D5F8G3H1K4M6N9P",
      "name": "Pro Plan v2",
      "description": null,
      "billingPeriod": "monthly",
      "prices": {
        "USD": { "amount": "39.00", "taxCategory": "saas" },
        "EUR": { "amount": "36.00", "taxCategory": "saas" }
      },
      "media": [],
      "successUrl": null,
      "metadata": { "trialDays": 7 },
      "status": "active",
      "createdAt": "2026-03-30T10:30:00.000Z",
      "updatedAt": "2026-03-30T11:00:00.000Z"
    }
  }
}
```

## Response Fields

Same as [Create Subscription Product response](/api-reference/endpoints/subscription-products/create-product#response-fields).

<Warning>
  Product updates create **new immutable versions**. Existing subscriptions retain their original version. New signups use the latest version. If the submitted content is identical to the current version, no new version is created.
</Warning>

## Errors

> **Retry policy:** Never retry 4xx — fix the request and resubmit. Retry 5xx with exponential backoff (start 5s, max 3 attempts).

| Status | `errors[0].message`                                                                   | What it means                                                               | Recommended handling                                                              |
| ------ | ------------------------------------------------------------------------------------- | --------------------------------------------------------------------------- | --------------------------------------------------------------------------------- |
| 400    | `Missing header: x-context-merchant-id`                                               | The merchant context header was not forwarded                               | Fix your SDK configuration                                                        |
| 400    | `Missing or invalid header: x-context-environment`                                    | Environment header is missing or not `test` / `prod`                        | Set `X-Environment` to `test` or `prod`                                           |
| 400    | `Missing required field: id`                                                          | Request body did not include `id`                                           | Add `id`, resubmit                                                                |
| 400    | `Expected format: PROD_xxx, got "X"`                                                  | `id` is not a valid Short ID                                                | Use a `PROD_` prefixed Short ID                                                   |
| 400    | `Field name must be a non-empty string`                                               | `name` was provided as an empty string                                      | Omit `name` to keep current value, or provide a non-empty string                  |
| 400    | `Invalid billingPeriod`                                                               | `billingPeriod` is not one of `weekly` / `monthly` / `quarterly` / `yearly` | Use one of the four allowed values                                                |
| 400    | `Field prices must be a non-empty object`                                             | `prices` was provided but empty                                             | Omit `prices` to keep current value, or include at least one currency             |
| 400    | `Invalid currency code: "X". Must be 3 uppercase letters (e.g., "USD", "EUR", "JPY")` | A key in `prices` is not a valid ISO 4217 code                              | Use 3 uppercase letters                                                           |
| 400    | `Invalid amount for X: "Y". Must be a positive number string (e.g., "9.99", "1000")`  | Amount string couldn't be parsed                                            | Use a positive decimal string                                                     |
| 400    | Message contains `has no version`                                                     | The target environment (`test` or `prod`) has no version yet                | Create a version in this environment first (publish from test, or create in test) |
| 401    | `Unauthorized`                                                                        | Authentication failed                                                       | Verify API key, timestamp, and signature                                          |
| 404    | `Product not found` / `Current version not found`                                     | Product ID does not exist (or current version missing)                      | Verify the product ID                                                             |
| 500    | `Internal server error`                                                               | Transient downstream failure                                                | Retry with exponential backoff (start 5s, max 3 attempts)                         |