# Check Bank Statement Duplicates

> Solarium docs, Bank Import. All requests are `POST https://api.trysolarium.com/graphql/` with `Authorization: Bearer <api key>` and a JSON body `{"query": ..., "variables": ...}`. Every query and mutation takes an `organizationId` (find it with `myOrganizations`). Index of all pages: https://trysolarium.com/llms.txt

Check rows against existing transactions before importing. Returns per-row duplicate flags. Full match = same date + amount + vendor. Possible match = same date + amount, different vendor.

### Arguments

| Name | Type | Required | Description |
| --- | --- | --- | --- |
| `organizationId` | `UUID!` | Yes | Organization ID |
| `paymentAccountId` | `UUID!` | Yes | Bank or credit card account to check against |
| `rows` | `[BankStatementRowInput!]!` | Yes | Array of statement rows to check. Each row: transactionDate (String!), description (String!), amount (String!), eventType (String!), memo (String), reference (String) |

### Request

```graphql
mutation {
  checkBankStatementDups(
    organizationId: "a1b2c3d4-..."
    paymentAccountId: "chequing-uuid"
    rows: [
      {
        transactionDate: "2025-03-01"
        description: "SHOPIFY *MAPLE ROASTERS"
        amount: "149.50"
        eventType: "expense"
      },
      {
        transactionDate: "2025-03-02"
        description: "TIM HORTONS #4821"
        amount: "11.30"
        eventType: "expense"
        memo: "Team coffee run"
      }
    ]
  ) {
    results {
      rowIndex
      isDuplicate
      isPossibleDuplicate
      matchingEventId
    }
    success
  }
}
```

### Response

```json
{
  "data": {
    "checkBankStatementDups": {
      "results": [
        {
          "rowIndex": 0,
          "isDuplicate": false,
          "isPossibleDuplicate": false,
          "matchingEventId": null
        },
        {
          "rowIndex": 1,
          "isDuplicate": true,
          "isPossibleDuplicate": false,
          "matchingEventId": "d8e9f0a1-..."
        }
      ],
      "success": true
    }
  }
}
```