Release Notes – CSV Upload Feature for Link4 Invoice Express (Singapore)

Release Notes – CSV Upload Feature for Link4 Invoice Express (Singapore)

Overview

As part of Link4’s continued investment in enhancing the Singapore InvoiceNow platform, we are pleased to introduce a new CSV Upload feature within the existing Link4 Invoice Express system.

This enhancement is designed to simplify onboarding, reduce manual data entry, and support compliance with Singapore’s GST InvoiceNow Requirement.

What's New in This Release

A new menu option, CSV Upload, has been added to the Link4 Invoice Express dashboard.

Users can now:

  • Upload transactions in bulk using a CSV file
  • Select the transaction document type
  • Submit files for automated validation and processing
  • Track processing status in real time
  • Review upload history and file details

Supported Document Types

The CSV Upload feature currently supports the following document types:

  • Invoice
  • Credit Notes
  • PCP Invoices
  • Non-Peppol Purchases
Info
Recommended Limit: For best performance, Link4 recommends uploading a maximum of 200 rows per CSV file. Larger files may still be accepted depending on system capacity, but processing times may increase.

Processing Status Monitoring

Each uploaded file displays a processing status such as:

  • File Processed
  • Processing
  • Failed Validation

Upload History

Users can review historical uploads, including:

  • Document Type
  • Sender
  • Receiver
  • Status
  • File Name
  • Upload Date

How to Use

  1. Log in to Link4 Invoice Express.
  2. Navigate to CSV Upload.
  3. Select the relevant Document Type.
  4. Click Choose File.
  5. Select the completed CSV template.
  6. Click Submit Document.
  7. Monitor the upload status in the Interim Uploads section.

CSV Template Field Definitions

Please refer to this link for the CSV Template Field Definitions.

Important Rules

req_id Grouping Rule

  • Each invoice must have a unique req_id.
  • Multiple rows with the same req_id are combined into one invoice.
  • Header fields must be identical across all rows with the same req_id.
  • Recommended maximum upload size: 200 rows per CSV file.

Date Format

  • Use YYYY-MM-DD.

Currency Codes

  • Use ISO 4217 codes such as SGD, USD, AUD.

Country Codes

  • Use ISO 3166-1 alpha-3 codes such as SGP, AUS, MYS.
Example Multi-Line Invoice


req_ide_inv_codedesc_of_servicequantityunit_price
INV001S-1001Product A1100.00
INV001S-1001Product B250.00
INV001S-1001Product C175.00

Summary

The new CSV Upload feature is a significant enhancement to the existing Link4 Invoice Express platform, enabling users to upload invoice and purchase data in bulk using a standard CSV template.

Built on a trusted platform serving more than 10,000 users, this release provides a practical and scalable way for Singapore businesses to streamline transaction processing and comply with the GST InvoiceNow Requirement.




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