We are aware that sage had an option to use sage 300 using Sage 300 Portal and Web Deployment along with Desktop screens. With the release of Sage 300 v2019, Sage has announced that Sage 300 Portal and Web Deployment will no longer be supported. Alternatively, similar functionality is now provided using the Sage 300c Web screens. CRM integration and other external integrations will be done using the web screens and web API.
New Stuff: Manage the prompt for exceeded credit limit approval in sage 300 ERP 2017 PU2 and higher
Sage 300 Portal and Web Deployment options are removed from the installation wizard.
Refer below screenshot of Sage 300 v2018 installation wizard 
Whereas refer the screenshot of Sage 300 2019 installation wizard
About Us
Greytrix a globally recognized Premier Sage Gold Development Partner is a one stop solution provider for Sage ERP and Sage CRM needs. Being recognized and rewarded for multi-man years of experience, we bring complete end-to-end assistance for your technical consultations, product customizations, data migration, system integrations, third party add-on development and implementation expertise.
Greytrix offers unique GUMU™ integrated solutions of Sage 300 with Sage CRM, Salesforce.com and Magento eCommerce along with Sage 300 Migration from Sage 50 US, Sage 50 CA, Sage PRO, QuickBooks, Sage Business Vision and Sage Business Works. We also offer best-in-class Sage 300 customization and development services and integration service for applications such as POS | WMS | Payroll | Shipping System | Business Intelligence | eCommerce for Sage 300 ERP and in Sage 300c development services we offer services such as upgrades of older codes and screens to new web screens, newer integrations using sdata and web services to Sage business partners, end users and Sage PSG worldwide. Greytrix offers over 20+ Sage 300 productivity enhancing utilities that we can help you with such as GreyMatrix, Document Attachment, Document Numbering, Auto-Bank Reconciliation, Purchase Approval System, Three way PO matching, Bill of Lading and VAT for Middle East.
For more details on Sage 300 and 300c Services, please contact us at accpac@greytrix.com. We will be glad to assist you.