REST API Integration with Sage 300 ERP

By | December 6, 2021

REST APIs are playing vital role in processing large data with lesser bandwidth. Being an architectural pattern REST can process data using various standards like JSON, XML, HTTP and URL for transfer and communication.

New Stuff: Quick invoicing and Bulk Shipment in Sage 300 desktop and Cloud version 2021.

How REST APIs can be integrated with Sage 300 ERP?
Let us consider a scenario where user is working on two ERPs wherein the target ERP is Sage 300. Here REST API comes into picture which will act as middle tier which takes the raw data from source ERP, processes the raw data into the format required by the Sage 300 and makes respective entries/transactions in Sage 300 ERP.

Which type of transactions can be created with REST APIs?
Below is the list of transactions which can be created in Sage 300 ERP with the help of REST APIs:

  • OE – O/E Order Entry, Shipment Entry, Invoice Entry and Credit/Debit Note Entry.
  • PO – P/O Order Entry, Requisition Entry, Receipt Entry, Invoice Entry, Return Entry and Credit/Debit Note Entry.
  • AR – Receipt Entry (Including all sub types), Invoice Entry, Credit/Debit Note Entry and Adjustment Entry.
  • AP – Invoice Entry, Payment Entry (Including all sub types), Credit/Debit Note Entry and Adjustment Entry.
  • GL – Journal Entry.

Other transactions including above ones can also be integrated through REST APIs.

Below is the list of masters that can be created via integration:

  • A/P Vendors
  • A/R Customers
  • G/L Accounts, etc.

Which type of data format can be used to integrate Sage 300 ERP with other system?
Majorly JSON and XML data formats can be used to process the data.

JSON (AP Payment Entry):

Output- Customer Master Export

XML (AP Payment Entry):

Output- Customer Master Export

About Us

Greytrix – a globally recognized and one of the oldest Sage Development Partner is a one-stop solution provider for Sage ERP and Sage CRM organizational needs. Being acknowledged 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 competence.

Greytrix offers unique GUMU™ integrated solutions of  Sage 300 with Sage CRM, Salesforce(listed on Salesforce Appexchange), Dynamics 365 CRM 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 services for applications such as POS | WMS | Payroll | Shipping System | Business Intelligence | eCommerce for Sage 300 ERP and for Sage 300c development services we offer, upgrades of older codes and screens to new web screens, latest integrations using Data and web services  to Sage business partners, end users and Sage PSG worldwide.

Greytrix offers 20+ addons for Sage 300 to enhance productivity such as GreyMatrixDocument AttachmentDocument NumberingAuto-Bank ReconciliationPurchase Approval SystemThree way PO matchingBill of Lading and VAT for Middle East. The GUMU™ integration for Dynamics 365 CRM – Sage ERP is listed on Microsoft Appsource with easy implementation package.

The GUMU™ Cloud framework by Greytrix forms the backbone of cloud integrations that are managed in real-time for processing and execution of application programs at the click of a button.

For more details on Sage 300 and Sage 300c Services, please contact us at, We will like to hear from you.