How To Fix R11270 - Telephone number &1 &2 ambiguous; identified using CONSNUMBER

SAP Error Message - Details

• Message type: E = Error

• Message class: R11 - Business Partner and BDT

• Message number: 270

• Message text: Telephone number &1 &2 ambiguous; identified using CONSNUMBER

What causes this issue?

The telephone number occurs more than once.
Therefore it is not possible to identify this record unambiguously via
the telephone number.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Enter the number of the data record (<LS>CONSNUMBER</>) in order to
identify this data record unambiguously.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message R11270 - Telephone number &1 &2 ambiguous; identified using CONSNUMBER ?

  The SAP error message R11270 indicates that there is an ambiguity with the telephone number associated with a contact or business partner in the system. The message typically arises when the system encounters multiple entries that match the provided telephone number, leading to confusion about which entry to use.
  Cause:
  
  Duplicate Entries: There may be multiple business partners or contacts in the system that share the same telephone number.
  Incorrect Data Entry: The telephone number may have been entered incorrectly or inconsistently across different records.
  Data Migration Issues: If data was migrated from another system, it may have resulted in duplicate or conflicting entries.
  
  Solution:
  
  Identify Duplicates: Use transaction codes like BP (Business Partner) or SE16N (Data Browser) to search for business partners or contacts with the same telephone number. 
  Review and Clean Data: Once duplicates are identified, review the records to determine which entries are valid and which can be merged or deleted.
  Update Records: Correct any inconsistencies in the telephone numbers across the relevant records to ensure that each number is unique to a single business partner or contact.
  Use Unique Identifiers: If possible, use unique identifiers (like business partner numbers) when referencing contacts to avoid ambiguity.
  Consult Documentation: Refer to SAP documentation or support for specific guidelines on managing business partner data.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as BP for managing business partners, SE16N for data browsing, and SM37 for job monitoring if data processing jobs are involved.
  Data Quality Management: Implement data quality management practices to regularly check for duplicates and inconsistencies in your SAP system.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message, as SAP may provide updates or fixes for specific scenarios.
  
  By addressing the underlying data issues and ensuring that telephone numbers are unique and correctly entered, you can resolve the R11270 error and prevent it from occurring in the future.