SAP NetWeaver Gateway : GW Troubleshooting Guide with Tcodes and PDF

This GW Troubleshooting Guide for SAP Netweaver Gateway will guide through to resolve and understand issue occurs in SAP Gateway Service Call.
First We will detail the keys points to investigate errors in SAP Gateway. Then you will find the Guide in PDF format.

SAP GW Troubleshooting Guide Topic

Error Occurred ? What to do?

The first point in this SAP GW Troubleshooting Guide will be What to do in case of error in SAP Gatetway call.

SAP Gateway Client Tcodes

The Gateway Client (transaction /IWFND/GW_CLIENT) for SAP NetWeaver Gateway is a powerful tool that enhances the existing Error Log.
SAP Gateway Client Tcode is? /IWFND/GW_CLIENT.

Check also?SAP Netweaver Gateway Tcodes: SAP GW Transaction Codes

SAP GW HTML Status Codes

You may analyse the issue of the SAP GW service call with the HTML Status code you got.
The value possible for HTML Status Codes for SAP GW are

• Successful 2xx
  • 200 OK
  • 201 Created
  • 202 Accepted
  • 204 No Content
• Client Error 4xx
  • 400 Bad Request
  • 401 Unauthorized
  • 403 Forbidden
  • 404 Not Found
  • 405 Method Not Allowed
  • 408 Request Timeout
  • 412 Precondition Failed
  • 415 Unsupported Media Type
• Server Error 5xx
  • 500 Internal Server Error
  • 502 Bad Gateway
  • 503 Service Unavailable
  • 504 Gateway Timeout

Find the explaination of each HTML Code in the bellow PDF.

Possible Approaches for SAP GW Errors

Error resolution with Application Log / IMG and replay

There are six steps to resolve an error with Application Log / IMG:

1. Execute request in Gateway Client
2. Find the error message in the Error Log
3. Explore the log for the error in Gateway Application Log
4. Change the configuration / Customizing settings in the IMG
5. Replay the request with Gateway Client 6. Check response

Error resolution in the Service Registry and replay

There are six steps to resolve an error in the Service Registry (Activate and Maintain Services):

1. Execute request in GW Client
2. Find the error message in the Error Log
3. Explore the Service in the Service Registry
4. Correct the Service Configuration in ICF
5. Replay the request with GW Client
6. Check response

Error resolution in the coding and replay

There are seven steps to resolve an error in the coding:

1. Execute the request in GW Client
2. Find the error message in the Error Log
3. Open the Service Implementation in Service MPC/DPC
4. Open the active coding
5. Correct the coding / create breakpoints
6. Replay the request with GW Client
7. Check response.

Error localization and replay

There are two different ways to localize an error:

1. Execute the request in GW Client
2. Find the error message in the Error Log
3. Possible ways:
   1. 1 st possibility:
      1. Find error location in the coding via Shortdumps (Transaction: st22)
      2. Create Breakpoints
   2. 2 nd possibility:
      1. ind error location in the coding via Call Stake
      2. Create Breakpoints
4. Replay the request with GW Client
5. Check response

Request XML in a problem ticket for Error Resolution at SAP

How a customer sends an error message via XML:

1. Customer executes the request
2. Customer finds the error message in the Error Log
3. downloads the error message as XML file
4. Customer attaches the XML to a problem ticket How to handle such a problem ticket:
   1. Upload Error XML in the Error Log
   2. Analyze error and replay the request with GW Client
   3. Analyze response in GW Client

Error resolution in the Backend Coding and replay

There are several ways to resolve an error in the Backend coding:

1. Execute the request in the GW Client in the Hub-System
2. Find the error message in the Error Log in the Hub-System
3. Find the error message in the Error Log in the Backend-System :Possible ways:
   1. 1 st possibility:
      1. Open the Service Implementation in Service MPC/DPC in the Backend-System
      2. Open the active coding in the Backend-System iii. Correct the coding / create Breakpoints in the Backend-System
      3. 2 nd possibility:
         1. Find the error location in the Call Stack in the Backend-System
         2. Open the active coding in the Backend-System iii. Correct the coding / create Breakpoints in the Backend-System
      4. 3 rd possibility:
         1. Find the error location in the Shortdumps (Transaction: st22)
         2. Create Breakpoints
4. Replay the request with GW Client in the Backend-System Check response.

GW TroubleShooting Guide for SAP Netweaver Gateway (PDF)

You can find further detail about all the above topics in order to investigate issue and error in SAP Gateway Services.

[pdf-embedder url=”https://sap4tech.net/wp-content/uploads/2017/01/SAP-Gateway-Troubleshooting_Guide.pdf” title=”SAP Gateway Troubleshooting_Guide”]
You can find the source here.

Further Reading for SAP Gateway Error

If you want to dig a point on how to resolve and to investigate trouble in SAP Gateway, check these following links

• SAP Gateway Error Log
• Configuration settings for Error Log
• SAP Gateway Client
• Application Log in SAP Gateway
• SAP Gateway Notification Monitor?
• Service Registry ? Activate and Maintain Services
• SAP Netweaver Gateway IMG (Customizing)