Corporate Master Test Data
Use corporate master dummy data aligned with the Corporate Number check digit and the qualified invoice issuer registration number format to test accounting, SFA, and sales-management system rollouts.
Compliance disclaimer
This content is a technical sample; the Corporate Number and registration number only follow the required format and are fictional. Do not use them as a substitute for verifying real companies or running credit checks.
Corporate master data involves logic tied to systems such as the Corporate Number and invoice registration number, which tends to make test cases complex. A standard schema lets you reproduce the key use cases safely.
The corporate master schema covers everything from the Corporate Number and registration number to credit and payee bank details. Below are representative fields and references. Field names stay in Japanese even in the en-US locale, matching CSV headers used by Japanese accounting/SFA systems.
| Field | Description | Reference |
|---|---|---|
| 取引先ID | Unique partner identifier | Digit count and prefix can be adjusted to your internal partner-code scheme |
| 法人番号 | 13-digit Corporate Number | Generated using the National Tax Agency's check-digit calculation method (unrelated to any real company) |
| 法人名 | Partner's company name | A fictional company name unrelated to any real company |
| 業種 | Partner's industry | An industry list based on the major categories of the Japan Standard Industrial Classification; change it with the industries parameter |
| 資本金 | Partner's capital (JPY) | Randomly generated within the capitalMin–capitalMax range |
| 適格請求書発行事業者登録番号 | Invoice registration number | Follows the invoice-system format "T + 13 digits"; adjust the registered share with invoiceRegisteredRatio |
| 取引区分 | Customer/supplier classification | One of three types — customer, supplier, or both; change it with the transactionTypes parameter |
| 締日 | Billing closing date | A closing date (end of month, the 20th, etc.) used for testing the billing/payment cycle |
| 支払サイト | Days from the closing date to the payment date | Used to test payment-schedule calculation logic |
| 与信限度額 | Partner's credit limit | A fictional value for testing credit-management systems |
| 振込先口座番号 | Payee bank account number | A fictional number, e.g. starting with a fictional prefix, designed not to be mistaken for a real account |
| 取引状態 | Status such as active/suspended | Useful for testing terminated or dormant partner records |
The Corporate Number is generated using the check-digit formula published by the National Tax Agency, but it is not a number that actually exists on the public lookup site. When testing integration with a partner-verification system, limit the scope to the format and check-digit validation that precedes any real-existence check.
The Corporate Number and company name are fictional data meant only for format validation. Do not cross-check them against a real corporate database or a public lookup site — limit use to format and logic testing.
The last digit of the Corporate Number is calculated as a check digit, so it can be used for unit tests of input-validation features.
Change the closing-date pattern and payment terms via parameters to mix partners with different billing cycles and verify aggregation logic.
The payee bank name and account number are fictional, but label the screens and materials clearly as "sample data" so they are not mistaken for a real account.
A. It is generated using only the check-digit formula published by the National Tax Agency and is not a real Corporate Number. We do not verify it against the public lookup site, so an accidental match cannot be fully ruled out — please do not treat it as real data.
A. Yes, for checking the "T + 13 digits" format. Since we do not verify registration numbers against the public lookup site, use a production-equivalent test account separately if you need to test real-existence verification via a web API.
A. Some adjustment is possible via parameters such as capitalMin/capitalMax and transactionTypes. For finer control over closing-date or payment-term distribution, post-process the generated CSV, or open a GitHub Issue to request a new parameter.
A. Field names (Corporate Number, registration number, etc.) are specific to Japanese systems and stay the same in both locales. Surrounding UI copy, such as descriptions and industry labels, is translated into English in the en-US locale.
Get partner data aligned with the Corporate Number check digit and invoice registration number format as CSV, JSON, or via the REST API. Combine it with customer master and invoice data for end-to-end B2B2C verification.
Download a ready-made sample for each schema to check the format before touching the generator.
100-row sample with dummy watermark