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

# Inflight for Multiple Sources & Destinations

> Create and update inflight transactions across multiple sources or destinations.

export const CtaCallout = props => {
  const {title, buttonLabel, href, trackingEvent, buttonTarget, rel = "noopener noreferrer", children} = props;
  const handleCtaClick = () => {
    if (typeof window === "undefined" || !trackingEvent) {
      return;
    }
    try {
      window.dispatchEvent(new CustomEvent("blnk:docs-cta", {
        detail: {
          name: trackingEvent,
          href
        }
      }));
    } catch {}
    try {
      window.posthog?.capture?.(trackingEvent, {
        href
      });
    } catch {}
    const gaPayload = {
      cta_href: href
    };
    try {
      window.gtag?.("event", trackingEvent, gaPayload);
    } catch {}
    try {
      window.dataLayer = window.dataLayer || [];
      window.dataLayer.push({
        event: trackingEvent,
        ...gaPayload
      });
    } catch {}
  };
  const isExternal = typeof href === "string" && (/^https?:\/\//i).test(href);
  const target = buttonTarget ?? (isExternal ? "_blank" : undefined);
  const linkRel = isExternal ? rel : undefined;
  return <section className="cta-callout not-prose relative my-8 w-full min-w-0 overflow-hidden rounded-xl border border-zinc-200 p-5 dark:border-white/10">
      <div className="cta-callout-noise" aria-hidden="true" />
      <div className="cta-callout-layout">
        {title ? <div className="cta-callout-title-row">
            <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 28 28" width="14" height="14" className="cta-callout-icon shrink-0 text-zinc-800 dark:text-zinc-200" aria-hidden="true">
              <g fill="none" fillRule="nonzero">
                <path d="M28 0v28H0V0h28ZM14.691833333333335 27.134333333333334l-0.012833333333333334 0.0023333333333333335 -0.08283333333333333 0.04083333333333334 -0.023333333333333334 0.004666666666666667 -0.016333333333333335 -0.004666666666666667 -0.08283333333333333 -0.04083333333333334c-0.011666666666666667 -0.004666666666666667 -0.022166666666666668 -0.0011666666666666668 -0.028000000000000004 0.005833333333333334l-0.004666666666666667 0.011666666666666667 -0.019833333333333335 0.49933333333333335 0.005833333333333334 0.023333333333333334 0.011666666666666667 0.015166666666666667 0.12133333333333333 0.08633333333333333 0.0175 0.004666666666666667 0.014000000000000002 -0.004666666666666667 0.12133333333333333 -0.08633333333333333 0.014000000000000002 -0.018666666666666668 0.004666666666666667 -0.019833333333333335 -0.019833333333333335 -0.4981666666666667c-0.0023333333333333335 -0.011666666666666667 -0.0105 -0.019833333333333335 -0.019833333333333335 -0.021Zm0.3091666666666667 -0.13183333333333336 -0.015166666666666667 0.0023333333333333335 -0.21583333333333335 0.1085 -0.011666666666666667 0.011666666666666667 -0.0035000000000000005 0.012833333333333334 0.021 0.5016666666666667 0.005833333333333334 0.014000000000000002 0.009333333333333334 0.008166666666666668 0.23450000000000004 0.1085c0.014000000000000002 0.004666666666666667 0.026833333333333334 0 0.03383333333333334 -0.009333333333333334l0.004666666666666667 -0.016333333333333335 -0.03966666666666667 -0.7163333333333334c-0.0035000000000000005 -0.014000000000000002 -0.011666666666666667 -0.023333333333333334 -0.023333333333333334 -0.025666666666666667Zm-0.8341666666666667 0.0023333333333333335a0.026833333333333334 0.026833333333334334 0 0 0 -0.0315 0.007000000000000001l-0.007000000000000001 0.016333333333333335 -0.03966666666666667 0.7163333333333334c0 0.014000000000000002 0.008166666666666668 0.023333333333333334 0.019833333333333335 0.028000000000000004l0.0175 -0.0023333333333333335 0.23450000000000004 -0.1085 0.011666666666666667 -0.009333333333333334 0.004666666666666667 -0.012833333333333334 0.019833333333333335 -0.5016666666666667 -0.0035000000000000005 -0.014000000000000002 -0.011666666666666667 -0.011666666666666667 -0.21466666666666667 -0.10733333333333334Z" strokeWidth="1.1667" />
                <path fill="currentColor" d="M14 2.916666666666667A1.75 1.75 0 0 1 15.750000000000002 4.666666666666667v6.302333333333334L21.207666666666668 7.816666666666667a1.75 1.75 0 0 1 1.75 3.031L17.5 14l5.457666666666667 3.151166666666667a1.75 1.75 0 0 1 -1.75 3.031l-5.457666666666667 -3.1500000000000004V23.333333333333336a1.75 1.75 0 0 1 -3.5 0v-6.302333333333334L6.792333333333334 20.183333333333337a1.75 1.75 0 1 1 -1.75 -3.031L10.5 14 5.042333333333334 10.848833333333333a1.75 1.75 0 0 1 1.75 -3.031l5.457666666666667 3.1500000000000004V4.666666666666667A1.75 1.75 0 0 1 14 2.916666666666667Z" strokeWidth="1.1667" />
              </g>
            </svg>
            <p className="cta-callout-title min-w-0 font-semibold text-zinc-800 dark:text-zinc-200">
              {title}
            </p>
          </div> : null}
        <div className={`cta-callout-body text-sm leading-normal text-zinc-800 dark:text-zinc-200${title ? " cta-callout-body--indented" : ""}`}>
          {children}
        </div>
        <a href={href} target={target} rel={linkRel} onClick={handleCtaClick} data-docs-cta={trackingEvent || undefined} className="cta-callout-button inline-flex items-center justify-center gap-1 rounded-full bg-white px-3 py-1.5 text-sm font-semibold transition hover:bg-zinc-100 focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-white/50 dark:bg-white dark:hover:bg-zinc-200">
          {buttonLabel}
          <span className="cta-callout-button-arrow" aria-hidden="true">
            →
          </span>
        </a>
      </div>
    </section>;
};

When you combine `inflight: true` with [multiple sources](/transactions/multiple-sources) or [multiple destinations](/transactions/multiple-destinations), Blnk records each leg as a separate inflight transaction linked to a root split ID.

***

## Record split inflight

<Tabs>
  <Tab title="Using the queue" icon="clock">
    <Info>From Blnk Core 0.15.0, inflight commit and void go through the queue by default.</Info>

    To use the queue, set `"skip_queue": false` or omit `skip_queue`.

    <Steps>
      <Step title="Record the split">
        Create a split transaction with `"inflight": true`:

        <CodeGroup>
          ```bash cURL wrap {11,12} theme={"system"}
          curl -X POST "http://YOUR_BLNK_INSTANCE_URL/transactions" \
            -H "X-blnk-key: <api-key>" \
            -H "Content-Type: application/json" \
            -d '{
              "precise_amount": 3000000,
              "precision": 100,
              "reference": "ref_001adcfgf",
              "currency": "USD",
              "source": "bln_92e4b9b6-0b85-4ef4-87a2-682c31500d38",
              "description": "Payment from Sarah",
              "inflight": true,
              "skip_queue": false,
              "destinations": [
                {
                  "identifier": "bln_f2073f6b-905a-4e3e-b5a2-8d1b3dc2fb7f",
                  "distribution": "20%"
                },
                {
                  "identifier": "bln_64c50fb5-32d5-4f78-9f4a-e8b01aaf025d",
                  "precise_distribution": "1000000"
                },
                {
                  "identifier": "bln_7d98dfe9-5c3e-4c9b-b96a-65f6d9f7b89b",
                  "distribution": "left"
                }
              ]
            }'
          ```

          ```typescript TypeScript wrap {8,9} theme={"system"}
          const response = await blnk.Transactions.create({
            precise_amount: 3000000,
            precision: 100,
            reference: 'ref_001adcfgf',
            currency: 'USD',
            source: 'bln_92e4b9b6-0b85-4ef4-87a2-682c31500d38',
            description: 'Payment from Sarah',
            inflight: true,
            skip_queue: false,
            destinations: [
              {
                identifier: 'bln_f2073f6b-905a-4e3e-b5a2-8d1b3dc2fb7f',
                distribution: '20%',
              },
              {
                identifier: 'bln_64c50fb5-32d5-4f78-9f4a-e8b01aaf025d',
                precise_distribution: '1000000',
              },
              {
                identifier: 'bln_7d98dfe9-5c3e-4c9b-b96a-65f6d9f7b89b',
                distribution: 'left',
              },
            ],
          });
          ```

          ```go Go wrap {9,25} theme={"system"}
          transaction, resp, err := client.Transaction.Create(blnkgo.CreateTransactionRequest{
            ParentTransaction: blnkgo.ParentTransaction{
              PreciseAmount: 3000000,
              Reference:   "ref_001adcfgf",
              Currency:    "USD",
              Precision:   100,
              Source:      "bln_92e4b9b6-0b85-4ef4-87a2-682c31500d38",
              Description: "Payment from Sarah",
              SkipQueue:   false,
              Destinations: []blnkgo.Source{
                {
                  Identifier:   "bln_f2073f6b-905a-4e3e-b5a2-8d1b3dc2fb7f",
                  Distribution: "20%",
                },
                {
                  Identifier:          "bln_64c50fb5-32d5-4f78-9f4a-e8b01aaf025d",
                  PreciseDistribution: "1000000",
                },
                {
                  Identifier:   "bln_7d98dfe9-5c3e-4c9b-b96a-65f6d9f7b89b",
                  Distribution: "left",
                },
              },
            },
            Inflight: true,
          })
          ```
        </CodeGroup>
      </Step>

      <Step title="Read the response">
        The response returns immediately with `status: "QUEUED"` for the split request itself. Blnk then queues each leg separately for processing.

        The worker then records each split leg as a separate INFLIGHT transaction. Every leg, and any later commit or void child, shares the same `meta_data.QUEUED_PARENT_TRANSACTION`.

        ```json 201 Queued wrap expandable {4,5} theme={"system"}
        {
          "amount": 30000,
          "precision": 100,
          "transaction_id": "txn_0b59f6e-6c4a-4efa-915c-526f77ef61ab",
          "status": "QUEUED",
          "skip_queue": false,
          "source": "bln_92e4b9b6-0b85-4ef4-87a2-682c31500d38",
          "reference": "ref_001adcfgf",
          "currency": "USD",
          "description": "Payment from Sarah",
          "destinations": [
            {
              "identifier": "bln_f2073f6b-905a-4e3e-b5a2-8d1b3dc2fb7f",
              "distribution": "20%",
              "transaction_id": "txn_59347177-aa7e-d8ad-9f4f-d09628b32ec3"
            },
            {
              "identifier": "bln_64c50fb5-32d5-4f78-9f4a-e8b01aaf025d",
              "distribution": "10000",
              "transaction_id": "txn_7ddc8d4f-3b77-4b7d-a37f-240216ab074c"
            },
            {
              "identifier": "bln_7d98dfe9-5c3e-4c9b-b96a-65f6d9f7b89b",
              "distribution": "left",
              "transaction_id": "txn_5aad04dd-ed53-4f77-9f01-4916d31fac5f"
            }
          ],
          "meta_data": {
            "QUEUED_PARENT_TRANSACTION": "txn_0b59f6e-6c4a-4efa-915c-526f77ef61ab"
          }
        }
        ```
      </Step>

      <Step title="Store the queued parent">
        Save `meta_data.QUEUED_PARENT_TRANSACTION` from the create response.

        Use this ID, not the per-leg IDs in `destinations`, when you commit, void, verify, or refund the split.
      </Step>

      <Step title="Commit or void the split">
        Call [Update inflight](/reference/update-inflight) with the queued parent ID. Blnk commits or voids every pending inflight leg in one request.

        ```text Update inflight theme={"system"}
        PUT /transactions/inflight/{queued_parent_transaction_id}
        ```

        <CodeGroup>
          ```bash cURL wrap theme={"system"}
          curl -X PUT "http://YOUR_BLNK_INSTANCE_URL/transactions/inflight/{queued_parent_transaction_id}" \
            -H "X-blnk-key: <api-key>" \
            -H "Content-Type: application/json" \
            -d '{
              "status": "commit",
              "skip_queue": false
            }'
          ```

          ```typescript TypeScript wrap {5} theme={"system"}
          const response = await blnk.Transactions.updateStatus(
            '{queued_parent_transaction_id}',
            {
              status: 'commit',
              skip_queue: false,
            },
          );
          ```

          ```go Go wrap theme={"system"}
          txn, resp, err := client.Transaction.Update(
            "{queued_parent_transaction_id}",
            blnkgo.UpdateStatus{
              Status: "commit",
            },
          )
          ```
        </CodeGroup>

        ```json 200 Queued wrap theme={"system"}
        {
          "transaction_id": "txn_0b59f6e-6c4a-4efa-915c-526f77ef61ab",
          "status": "INFLIGHT",
          "queued": true
        }
        ```

        The worker creates an `APPLIED` or `VOID` child for each leg. Every child keeps the same `meta_data.QUEUED_PARENT_TRANSACTION`, so you can verify the whole split with [webhooks or polling](/transactions/inflight/updating-inflight#verify-with-webhooks).
      </Step>
    </Steps>
  </Tab>

  <Tab title="Skipped queue" icon="bolt">
    To skip the queue, set `"skip_queue": true` on create and on commit or void.

    <Steps>
      <Step title="Record the split">
        Create a split transaction with `"inflight": true` and `"skip_queue": true`:

        <CodeGroup>
          ```bash cURL wrap {11,12} theme={"system"}
          curl -X POST "http://YOUR_BLNK_INSTANCE_URL/transactions" \
            -H "X-blnk-key: <api-key>" \
            -H "Content-Type: application/json" \
            -d '{
              "precise_amount": 3000000,
              "precision": 100,
              "reference": "ref_001adcfgf",
              "currency": "USD",
              "source": "bln_92e4b9b6-0b85-4ef4-87a2-682c31500d38",
              "description": "Payment from Sarah",
              "inflight": true,
              "skip_queue": true,
              "destinations": [
                {
                  "identifier": "bln_f2073f6b-905a-4e3e-b5a2-8d1b3dc2fb7f",
                  "distribution": "20%"
                },
                {
                  "identifier": "bln_64c50fb5-32d5-4f78-9f4a-e8b01aaf025d",
                  "precise_distribution": "1000000"
                },
                {
                  "identifier": "bln_7d98dfe9-5c3e-4c9b-b96a-65f6d9f7b89b",
                  "distribution": "left"
                }
              ]
            }'
          ```

          ```typescript TypeScript wrap {8,9} theme={"system"}
          const response = await blnk.Transactions.create({
            precise_amount: 3000000,
            precision: 100,
            reference: 'ref_001adcfgf',
            currency: 'USD',
            source: 'bln_92e4b9b6-0b85-4ef4-87a2-682c31500d38',
            description: 'Payment from Sarah',
            inflight: true,
            skip_queue: true,
            destinations: [
              {
                identifier: 'bln_f2073f6b-905a-4e3e-b5a2-8d1b3dc2fb7f',
                distribution: '20%',
              },
              {
                identifier: 'bln_64c50fb5-32d5-4f78-9f4a-e8b01aaf025d',
                precise_distribution: '1000000',
              },
              {
                identifier: 'bln_7d98dfe9-5c3e-4c9b-b96a-65f6d9f7b89b',
                distribution: 'left',
              },
            ],
          });
          ```

          ```go Go wrap {9,25} theme={"system"}
          transaction, resp, err := client.Transaction.Create(blnkgo.CreateTransactionRequest{
            ParentTransaction: blnkgo.ParentTransaction{
              PreciseAmount: 3000000,
              Reference:   "ref_001adcfgf",
              Currency:    "USD",
              Precision:   100,
              Source:      "bln_92e4b9b6-0b85-4ef4-87a2-682c31500d38",
              Description: "Payment from Sarah",
              SkipQueue:   true,
              Destinations: []blnkgo.Source{
                {
                  Identifier:   "bln_f2073f6b-905a-4e3e-b5a2-8d1b3dc2fb7f",
                  Distribution: "20%",
                },
                {
                  Identifier:          "bln_64c50fb5-32d5-4f78-9f4a-e8b01aaf025d",
                  PreciseDistribution: "1000000",
                },
                {
                  Identifier:   "bln_7d98dfe9-5c3e-4c9b-b96a-65f6d9f7b89b",
                  Distribution: "left",
                },
              },
            },
            Inflight: true,
          })
          ```
        </CodeGroup>
      </Step>

      <Step title="Read the response">
        The response returns with `status: "INFLIGHT"` for the split request itself. Blnk records each leg in the same request, not through a background worker.

        Each split leg is written as a separate `INFLIGHT` transaction. Every leg shares the same `parent_transaction`, the root `transaction_id`.

        ```json 201 Created wrap expandable {4,5} theme={"system"}
        {
          "amount": 30000,
          "precision": 100,
          "transaction_id": "txn_a8c3e7f1-4b2d-4e91-9c3d-2f8e6a1b5d94",
          "status": "INFLIGHT",
          "skip_queue": true,
          "source": "bln_92e4b9b6-0b85-4ef4-87a2-682c31500d38",
          "reference": "ref_001adcfgf",
          "currency": "USD",
          "description": "Payment from Sarah",
          "destinations": [
            {
              "identifier": "bln_f2073f6b-905a-4e3e-b5a2-8d1b3dc2fb7f",
              "distribution": "20%",
              "transaction_id": "txn_59347177-aa7e-d8ad-9f4f-d09628b32ec3"
            },
            {
              "identifier": "bln_64c50fb5-32d5-4f78-9f4a-e8b01aaf025d",
              "distribution": "10000",
              "transaction_id": "txn_7ddc8d4f-3b77-4b7d-a37f-240216ab074c"
            },
            {
              "identifier": "bln_7d98dfe9-5c3e-4c9b-b96a-65f6d9f7b89b",
              "distribution": "left",
              "transaction_id": "txn_5aad04dd-ed53-4f77-9f01-4916d31fac5f"
            }
          ]
        }
        ```
      </Step>

      <Step title="Store the root split ID">
        Save the root `transaction_id` from the create response.

        Use this ID, not the per-leg IDs in `destinations`, when you commit, void, or verify the split.
      </Step>

      <Step title="Commit or void the split">
        Call [Update inflight](/reference/update-inflight) with the root split ID. Blnk commits or voids every inflight leg in one request.

        ```text Update inflight theme={"system"}
        PUT /transactions/inflight/{transaction_id}
        ```

        <CodeGroup>
          ```bash cURL wrap {6} theme={"system"}
          curl -X PUT "http://YOUR_BLNK_INSTANCE_URL/transactions/inflight/{transaction_id}" \
            -H "X-blnk-key: <api-key>" \
            -H "Content-Type: application/json" \
            -d '{
              "status": "commit",
              "skip_queue": true
            }'
          ```

          ```typescript TypeScript wrap {5} theme={"system"}
          const response = await blnk.Transactions.updateStatus(
            '{transaction_id}',
            {
              status: 'commit',
              skip_queue: true,
            },
          );
          ```
        </CodeGroup>

        ```json 200 Skipped queue wrap theme={"system"}
        {
          "transaction_id": "txn_59347177-aa7e-d8ad-9f4f-d09628b32ec3",
          "status": "APPLIED",
          "parent_transaction": "txn_59347177-aa7e-d8ad-9f4f-d09628b32ec3"
        }
        ```

        The HTTP response reflects the first leg processed. Each leg's `APPLIED` or `VOID` child links only to that leg's inflight ID through `parent_transaction`.

        Nothing is shared across legs, so verify each leg separately with [webhooks or polling](/transactions/inflight/updating-inflight#verify-with-webhooks).
      </Step>
    </Steps>
  </Tab>
</Tabs>

***

## Error handling

<Info>
  Structured errors are available from Blnk Core 0.15.0 and later.
</Info>

Split inflight commit and void use the same [Update inflight](/reference/update-inflight) endpoint as single inflight transactions. Blnk returns `400`, `404`, and `409` when the request ID or state is wrong.

| Code            | When it happens                                                               |
| :-------------- | :---------------------------------------------------------------------------- |
| `GEN_CONFLICT`  | A commit or void is already queued for the split parent (default queue path). |
| `TXN_NOT_FOUND` | The ID in the path is not the root split or queued parent.                    |

```json 404 Not Found wrap theme={"system"}
{
  "error": "Transaction with ID 'txn_f482a1b3-6c2d-4e89-a17b-3d5e8f2a1c94' not found",
  "error_detail": {
    "code": "TXN_NOT_FOUND",
    "message": "Transaction with ID 'txn_f482a1b3-6c2d-4e89-a17b-3d5e8f2a1c94' not found"
  }
}
```

To resolve the error:

| Code            | What to do                                                                                                                    |
| :-------------- | :---------------------------------------------------------------------------------------------------------------------------- |
| `GEN_CONFLICT`  | Wait for the queued job to finish. See [Verify with webhooks](/transactions/inflight/updating-inflight#verify-with-webhooks). |
| `TXN_NOT_FOUND` | Use the root `transaction_id` or `QUEUED_PARENT_TRANSACTION` from the create response, not a leg ID.                          |

Other commit and void errors match [Commit & void inflight - Error handling](/transactions/inflight/updating-inflight#error-handling). See [API error codes](/advanced/error-codes) for the full catalogue.

***

## Related docs

<CardGroup cols={2}>
  <Card title="Multiple sources" icon="arrow-up-from-line" href="/transactions/multiple-sources">
    Send from several balances at once.
  </Card>

  <Card title="Multiple destinations" icon="arrow-down-to-line" href="/transactions/multiple-destinations">
    Send to several balances at once.
  </Card>

  <Card title="Commit & void inflight" icon="circle-check" href="/transactions/inflight/updating-inflight">
    Commit, void, and verify inflight transactions.
  </Card>

  <Card title="Refunding split transactions" icon="undo-2" href="/transactions/refunds#refunding-split-transactions">
    Refund queued split parents together.
  </Card>
</CardGroup>

***

## Need help?

We are very happy to help you make the most of Blnk, regardless of whether it is your first time or you are switching from another tool.

To ask questions or discuss issues, please [contact us](mailto:support@blnkfinance.com) or [join our Discord community](https://discord.gg/7WNv94zPpx).

<CtaCallout title="Connect your ledger to Blnk Cloud" href="https://cloud.blnkfinance.com/auth/sign-up?utm_source=blnk_docs&utm_medium=documentation&utm_campaign=need-help" buttonLabel="Open Blnk Cloud" trackingEvent="clicked_cloud_signup">
  Sign up and manage your ledger with our back-office dashboard. You can invite teammates to collaborate and manage your ledger operations directly from the dashboard.
</CtaCallout>