How To Fix IS401 - Serial number & & still has no status

SAP Error Message - Details

• Message type: E = Error

• Message class: IS - Equipment management

• Message number: 401

• Message text: Serial number & & still has no status

What causes this issue?

You are trying to display a serial number master record that was not
assigned a status when it was created in the system.

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?

To assign a status to the serial number master record, proceed as
follows:
Select the serial number master record in the change mode.
Save the master record.
RESET N1

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IS401 - Serial number & & still has no status ?

  The SAP error message IS401, which states "Serial number & & still has no status," typically occurs in the context of inventory management or production planning when dealing with serialized materials. This error indicates that the system is unable to find a status for a specific serial number, which can prevent various operations such as goods movements, deliveries, or production confirmations.
  Causes:
  
  
  Missing Status Assignment: The serial number has not been assigned a status in the system. This can happen if the serial number was created but not properly initialized or if it was not assigned to a relevant document (like a delivery or production order).
  
  
  Incorrect Serial Number Entry: The serial number entered may be incorrect or does not exist in the system.
  
  
  Data Inconsistency: There may be inconsistencies in the database, such as missing entries in the serial number master data.
  
  
  System Configuration Issues: The configuration settings for serial number management may not be set up correctly, leading to issues in status assignment.
  
  
  Solutions:
  
  
  Check Serial Number Status: Use transaction codes like IQ03 (Display Serial Number) to check the status of the serial number in question. Ensure that it has been properly created and assigned.
  
  
  Assign Status: If the serial number exists but has no status, you may need to assign a status manually. This can often be done through the relevant transaction for the material or equipment.
  
  
  Verify Data Entry: Double-check the serial number entered in the transaction to ensure it is correct. Look for typos or formatting issues.
  
  
  Review Configuration: If the issue persists, review the configuration settings for serial number management in the system. Ensure that all necessary settings are correctly configured.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on handling serial numbers and their statuses.
  
  
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as IQ01 (Create Serial Number), IQ02 (Change Serial Number), and IQ03 (Display Serial Number).
  SAP Notes: Check SAP Notes for any known issues or patches related to serial number management.
  User Training: Ensure that users handling serialized materials are adequately trained in the processes and procedures for managing serial numbers in SAP.
  
  By following these steps, you should be able to identify the cause of the IS401 error and implement a solution to resolve it.