How To Fix CACSDESIGN153 - Customer instance numbers must start with a number

SAP Error Message - Details

• Message type: E = Error

• Message class: CACSDESIGN - Messages From Construction

• Message number: 153

• Message text: Customer instance numbers must start with a number

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 CACSDESIGN153 - Customer instance numbers must start with a number ?

  The SAP error message CACSDESIGN153 indicates that there is an issue with the customer instance numbers in the SAP system. Specifically, the error states that customer instance numbers must start with a number. This typically occurs during the configuration or creation of customer instances in the SAP system.
  Cause:
  The primary cause of this error is that the customer instance number you are trying to create or modify does not adhere to the naming convention required by SAP. According to SAP's rules, instance numbers must begin with a numeric character (0-9). If the instance number starts with a letter or any other non-numeric character, this error will be triggered.
  Solution:
  To resolve this error, you should:
  
  
  Check the Instance Number: Review the customer instance number you are trying to create or modify. Ensure that it starts with a numeric character.
  
  
  Modify the Instance Number: If the instance number does not start with a number, change it to a valid format. For example, if you have an instance number like "A123", change it to "1A123" or "123A".
  
  
  Validation: After making the changes, validate the instance number to ensure it meets all other SAP requirements and conventions.
  
  
  Retry the Operation: Once you have corrected the instance number, retry the operation that triggered the error.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for guidelines on naming conventions and instance number formats.
  SAP Community: You can search for discussions or similar issues in the SAP Community forums, where other users may have encountered and resolved the same error.
  SAP Notes: Check for any relevant SAP Notes that might provide additional insights or updates regarding this error message.
  
  If the problem persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.