How To Fix /IWNGW/CM_HUB136 - Empty Space not allowed in the field SAP System Alias

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWNGW/CM_HUB -

• Message number: 136

• Message text: Empty Space not allowed in the field SAP System Alias

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWNGW/CM_HUB136 - Empty Space not allowed in the field SAP System Alias ?

  The SAP error message /IWNGW/CM_HUB136 Empty Space not allowed in the field SAP System Alias typically occurs when you are trying to create or modify a system alias in the SAP system, and the alias name you provided contains spaces. This error is common in configurations where system aliases are used to connect to different SAP systems or services.
  Cause:
  The primary cause of this error is the presence of one or more spaces in the SAP System Alias field. SAP system aliases must adhere to specific naming conventions, which do not allow spaces or certain special characters.
  Solution:
  To resolve this error, follow these steps:
  
  
  Check the Alias Name: Review the alias name you are trying to enter. Ensure that it does not contain any spaces. For example, instead of using "My SAP System", use "MySAPSystem" or "My_SAP_System".
  
  
  Modify the Alias: If you have already entered an alias with spaces, you will need to modify it. Go to the relevant configuration screen where you can edit the system alias and remove any spaces.
  
  
  Use Valid Characters: Ensure that the alias name only contains valid characters. Typically, you can use letters, numbers, and underscores. Avoid using special characters or spaces.
  
  
  Save Changes: After making the necessary changes, save the configuration and check if the error persists.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for guidelines on naming conventions for system aliases and other related configurations.
  Transaction Codes: Depending on your SAP version, you may use transaction codes like SM59 (for RFC connections) or SPRO (for configuration settings) to manage system aliases.
  SAP Notes: Check for any relevant SAP Notes that might provide additional insights or updates related to this error message.
  
  If you continue to experience issues after following these steps, consider reaching out to your SAP Basis team or consulting SAP support for further assistance.