How To Fix GW018 - External security files were reread

GW018 - Overview

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 018

• Message text: External security files were reread

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message GW018 - External security files were reread ?

  The SAP error message GW018 ("External security files were reread") typically occurs in the context of SAP Gateway and is related to the security settings and configurations for external services. This message indicates that the system has detected a change in the external security files, which may include changes to user authorizations, roles, or other security-related configurations.
  
  Cause:
  
  Changes in Security Files: The error is triggered when there are modifications to the external security files that the SAP Gateway relies on. This could be due to updates in user roles, permissions, or other security settings.
  System Configuration Changes: Changes in the system configuration or updates to the SAP Gateway settings can also lead to this message being displayed.
  Manual Reread: Sometimes, administrators may manually trigger a reread of the security files, which can lead to this message being logged.
  
  
  Solution:
  
  Check Security Files: Review the external security files to ensure that they are correctly configured and