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

R11270 - Overview

• 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.

R11270 - Details

• 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