How To Fix /IWBEP/CM_MGW_RT180 - If Max-Age is not initial then Do-Not-Cache-On-Client must be set to '-'

/IWBEP/CM_MGW_RT180 - Overview

• Message type: E = Error

• Message class: /IWBEP/CM_MGW_RT -

• Message number: 180

• Message text: If Max-Age is not initial then Do-Not-Cache-On-Client must be set to '-'

Self-Explanatory Message

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/IWBEP/CM_MGW_RT180 - Details

• The SAP error message /IWBEP/CM_MGW_RT180 typically occurs in the context of SAP Gateway and OData services. This error indicates a conflict between the Max-Age HTTP header and the Do-Not-Cache-On-Client setting in the response.
  
  Cause:
  The error arises when the Max-Age header is set to a value greater than zero, which indicates that the response can be cached by the client for a specified duration. However, if the Do-Not-Cache-On-Client header is not set to '-', it creates a contradiction because the server is indicating that the response can be cached while also suggesting that it should not be cached.
  
  Solution:
  To resolve this error, you need to ensure that the Do-Not-Cache-On-Client header is set correctly based on the value of the Max-Age header. Here are the steps to fix the issue:
  
  
  Check the OData Service Configuration: 
  
  Go to the service definition in the SAP Gateway and check the settings for caching.
  Ensure that if Max-Age is set