ACS Back-Office
VERSION 26R1 - last update Sept. 10 2025
1. ACS Back-office
WL ACS includes a Back-office tool for administration purposes called “Extranet”. The bank can access the Extranet portal via a secure web interface (HTTPS); the user authenticates himself using a two factors authentication method (TOTP, IDP or WebAuthn).
The ACS platform enables the bank to manage and configure its 3-D Secure service autonomously (depending rights given by WL). The tool is easy to use and requires only limited assistance by WL.

The main functions are:
- Activity monitoring :
- History of the 3DS authentications
- Cardholder repository management
- Transaction report exported in pdf for dispute management
- Daily service monitoring
- Reporting (PSD2 reporting, 3DS reporting, activity reporting …)
- Data analytics module based on Power BI for powerful reporting & monitoring analysis
- Platform Configuration :
- 3-D Secure screen and workflow management
- Rule engine management (RBA, PSD2 rules)
- Standard Fraud prevention tools (filters and blacklisting of merchants and cardholders)
- BIN loading module - BIN Range declaration
- Maintenance Mode
- Testing tools :
- Test merchant to simulate authentication workflow changes
- Test Scenario to run scripts or saved tests
- Back-Office administration
- Notification center to push information to Back-office users
- User right Management
- User experience traceability
Currently the GUI is available in French, English, German and Italian. User set up will be executed by the issuer, after Worldline activated one administrator that can create the other users.
2. User Guides
The user guides are not yet available here. You can request these documents by contacting your Worldline project contact. This way you will have access to the latest version available.
The ACS3 Extranet User’s Guide is organized as follows:
File Name | Description | Last version |
|---|---|---|
ACS3-Extranet User Guide-Instructions_25R1.docx | Vol. 0: Introduction and Instruction | 25R1 |
ACS3-Extranet User Guide-Transactions_25R1.docx | Vol. 1: TransactionsThis first volume deals with the monitoring, testing and reporting of the transactions that are performed on our ACS. | 25R1 |
ACS3-Extranet User Guide-Configurations_25R1.docx | Vol. 2: Configurations This second part explains how to manage the data that can be configured through the Extranet, such as BIN ranges, cardholders’ data, profiles or general settings. | 25R1 |
ACS3-Extranet User Guide-APM-RBA_25R1.docx | Vol. 3: APM / RBA This volume is dedicated to the data linked to the HUB: fraud and RBA management. | 25R1 |
ACS3-Extranet User Guide-Reporting_25R1.docx | Vol.4: ReportingThe last volume is dedicated to the reporting and data analytics tool. | 25R1 |










