How To Fix /IWPGW/CM_TGW_INBOX102 - Enter a field type

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWPGW/CM_TGW_INBOX -

• Message number: 102

• Message text: Enter a field type

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 /IWPGW/CM_TGW_INBOX102 - Enter a field type ?

  The SAP error message /IWPGW/CM_TGW_INBOX102 Enter a field type typically occurs in the context of the SAP Gateway or when working with the SAP Fiori applications. This error indicates that a required field type has not been specified or is missing in the input data.
  Cause:
  
  Missing Field Type: The error usually arises when a required field type is not provided in the request. This could be due to a misconfiguration in the application or an issue with the data being sent to the backend.
  Incorrect Data Mapping: If the data being sent to the SAP system does not match the expected structure or types, it can lead to this error.
  Custom Development Issues: If there are custom developments or enhancements in the application, they might not be handling the field types correctly.
  
  Solution:
  
  Check Input Data: Ensure that all required fields are being populated correctly in the request. Verify that the field types match the expected types in the backend.
  Review Application Configuration: If you are using a custom application or Fiori app, check the configuration settings to ensure that all necessary fields are defined.
  Debugging: If you have access to the backend, you can use transaction codes like SE80 or SE37 to debug the function modules or OData services involved. Look for any missing parameters or incorrect mappings.
  Check OData Service: If the error is related to an OData service, ensure that the service is correctly defined and that the metadata is accurate. You can use the /IWFND/MAINT_SERVICE transaction to check the service registration.
  Consult Documentation: Review the SAP documentation for the specific application or module you are working with to ensure that you are following the correct procedures.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues related to this error message. You can search for the error message or related keywords in the SAP Support Portal.
  Community Forums: SAP Community and other forums can be helpful to see if other users have encountered the same issue and found solutions.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE80 (Object Navigator), SE37 (Function Module), and IWFND/MAINT_SERVICE (OData Service Maintenance) for troubleshooting.
  
  If the issue persists after trying the above solutions, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.