How To Fix SFGDT_TOOL023 - The external number consists of 20 characters and starts with "TT"

SAP Error Message - Details

• Message type: E = Error

• Message class: SFGDT_TOOL -

• Message number: 023

• Message text: The external number consists of 20 characters and starts with "TT"

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SFGDT_TOOL023 - The external number consists of 20 characters and starts with "TT" ?

  The SAP error message SFGDT_TOOL023 indicates that there is an issue with the external number format in the context of the SAP system, specifically related to the use of external identifiers that are expected to follow certain rules.
  
  Cause:
  The error message suggests that the external number you are trying to use:
  
  Consists of 20 characters.
  Starts with the prefix "TT".
  
  In many SAP configurations, there are specific rules regarding the format and length of external numbers. The prefix "TT" may be reserved for specific purposes or may not be allowed in certain contexts, leading to this error.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the External Number Format: Ensure that the external number you are trying to use adheres to the expected format. If it is supposed to be a different prefix or a different length, modify it accordingly.
  
  
  Review Configuration Settings: If you have access to the configuration settings in SAP, check