How To Fix E0551 - Error during internal number assignment for port names

SAP Error Message - Details

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 551

• Message text: Error during internal number assignment for port names

What causes this issue?

An internal number could not be assigned for the number '01' for the
number range object EDIPORT.

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?

Please check whether the number range object EDIPORT is available with
the interval '01' for internal number assignment.
If it is not yet available, then create the interval.
If the interval is available, a Basis error must be involved. In this
case, please contact your administration and, if necessary, the SAP
Hotline.

<DS:TRAN.OYSM>Execute function</>
ENDIF

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E0551 - Error during internal number assignment for port names ?

  The SAP error message E0551, which states "Error during internal number assignment for port names," typically occurs when there is an issue with the internal number assignment for ports in the SAP system. This can happen in various contexts, such as when configuring communication between systems or when setting up interfaces.
  Causes:
  
  Number Range Issues: The number range for the port names may not be properly defined or may be exhausted.
  Configuration Errors: There may be misconfigurations in the settings related to the ports or communication channels.
  Authorization Issues: The user may not have the necessary authorizations to create or modify port names.
  System Errors: There could be underlying system issues or inconsistencies in the database.
  
  Solutions:
  
  
  Check Number Ranges:
  
  Go to transaction code SNRO (Number Range Objects).
  Look for the relevant number range object associated with port names (e.g., EIPORT).
  Check if the number range is defined correctly and if it has available numbers. If it is exhausted, you may need to extend the number range.
  
  
  
  Review Configuration:
  
  Ensure that the configuration for the ports is correct. This includes checking the settings in transaction codes like WE21 (Port Definition) or SO21 (Service Connection).
  Verify that all required fields are filled out correctly.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to create or modify port names. This can be checked in transaction SU53 after attempting the action that caused the error.
  
  
  
  System Consistency Check:
  
  Perform a consistency check on the system to identify any underlying issues. This can be done using transaction SE11 (Data Dictionary) or SE14 (Database Utility) to check for inconsistencies in the database.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that resolve known issues.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error and the steps you have already taken.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SNRO, WE21, SO21, SU53, SE11, and SE14.
  Documentation: Review SAP documentation related to port configuration and number range management.
  Community Forums: Check SAP community forums or other online resources for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to diagnose and resolve the E0551 error in your SAP system.