Sage 300

Sage 300 is accounting software for small to medium sized enterprises that fulfills all your accounting needs.

Customised and tailored by Astech

Sage CRM

Customer Relationship Management Software- Sage CRM is a powerful and easy-to-use customer relationship management solution that integrates directly with both Sage 300 and SAGE ERP X3.

Customised and tailored by Astech

Credit Management Solutions

The Astech Credit and Loan Management Solution (LMS) is a comprehensive end to end business software solution for credit providers.

Customised and tailored by Astech

Fix "Authentication required, Browser session mismatch" error in Sage CRM

When logging into Sage CRM using Internet Explorer, you might encounter the following error:


This issue appears to be caused by a new security feature introduced in Sage CRM (7.3+) and appears when using Sage CRM over HTTPS.


These solutions were obtained from Sage City.

Configure Internet Explorer

The best solution would be to configure Internet Explorer to avoid the issue appearing.

  1. Open Internet Explorer and navigate to your Sage CRM instance
  2. Click on the Settings Icon on the top right and select Compatibility View settings

  1. Uncheck the Display intranet sites in Compatibility View and remove any CRM server hosts from the list as seen below:

Sage 300 CRM