Tools:
Gateway Error Log
Gateway Client
Gateway Tracing Tools
Recommended Articles:
ABAP Connectivity - SAP Gateway Wiki
SAP Gateway Community
SAP NetWeaver Technology Community
Tag: SAP Gateway
SAP Gateway - Guided Answers -
KBA 2537427
SAP NetWeaver Gateway 2.0 - Known Constraints -
SAP Note 1574568
Related Pages:
Using OAuth 2.0 from a Web Application
Configuring Remote Systems in SM59
Create an RFC trust relationship between 2 SAP systems
Video Tutorials:
SAP Gateway: Introduction
SAP Gateway: Technical Overview
Additional Resources
Product Page for SAP Gateway
(SAP Help Portal)
Questions around SAP Gateway
(SAP Community)
Questions around SAP Gateway
(SAP Community)
Blog Posts for SAP Gateway
(SAP Community)
Blog Posts for SAP Gateway
(SAP Community)