How To Fix ISI027 - Default telephone number can not be deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: ISI - Message class for Supplier Workplace

• Message number: 027

• Message text: Default telephone number can not be deleted

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 ISI027 - Default telephone number can not be deleted ?

  The SAP error message ISI027, which states "Default telephone number cannot be deleted," typically occurs when a user attempts to delete a telephone number that is set as the default for a particular business partner or contact in the SAP system. This error is designed to prevent the deletion of essential contact information that is necessary for communication and business processes.
  Cause:
  
  Default Setting: The telephone number you are trying to delete is marked as the default number for the business partner or contact.
  Data Integrity: SAP enforces data integrity rules to ensure that critical information is not inadvertently removed, which could lead to issues in communication or business transactions.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Change Default Telephone Number:
  
  Navigate to the business partner or contact record where the telephone number is set.
  Change the default telephone number to another valid number. This can usually be done in the relevant transaction (e.g., BP for Business Partner).
  Once a new default number is set, you should be able to delete the old default number without encountering the error.
  
  
  
  Check for Dependencies:
  
  Ensure that there are no other dependencies or settings that might be preventing the deletion of the telephone number.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific instructions related to managing business partner data and telephone numbers.
  
  
  
  User Permissions:
  
  Ensure that you have the necessary permissions to make changes to the business partner data. If you do not have the required access, contact your SAP administrator.
  
  
  
  Contact Support:
  
  If you continue to experience issues, consider reaching out to your SAP support team or consulting SAP Notes for any known issues or patches related to this error.
  
  
  
  Related Information:
  
  Transaction Codes: Common transaction codes related to business partner management include BP (Business Partner), SU01 (User Maintenance), and SE11 (Data Dictionary).
  SAP Notes: Check SAP Notes for any updates or specific fixes related to this error message.
  Data Model: Understanding the data model for business partners in SAP can help in managing and troubleshooting issues related to contact information.
  
  By following these steps, you should be able to resolve the ISI027 error and manage telephone numbers effectively within your SAP system.