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

ISI027 - Overview

• 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.

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 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