How To Fix IO201 - Serial number & cannot be used here

SAP Error Message - Details

• Message type: E = Error

• Message class: IO - Plant Maintenance: Object List

• Message number: 201

• Message text: Serial number & cannot be used here

What causes this issue?

You have entered a <DS:GLOS.3526C31EAFAB52B9E10000009B38F974>serial
number</> already present in the system.

System Response

If this is an error message of type E:
The current serial number status means that you cannot assign the
serial number to the document (for example,
<DS:GLOS.3526C023AFAB52B9E10000009B38F974>material document</>,
<DS:GLOS.3526BEB2AFAB52B9E10000009B38F974>delivery note</>.
If this is an error message of type W:
You can assign the serial number despite the current status, or the
serial number has already been assigned. In this case, you should
verify the status and the causes of the error message.

How to fix this error?

Verify the status of the serial number using the function
<DS:TRAN.IQ03>Display material serial number</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IO201 - Serial number & cannot be used here ?

  The SAP error message "IO201 Serial number & cannot be used here" typically occurs in the context of inventory management or asset management when dealing with serial numbers. This error indicates that the specific serial number you are trying to use is not valid for the operation you are attempting to perform. Here are some common causes, solutions, and related information for this error:
  Causes:
  
  Incorrect Serial Number: The serial number entered may not exist in the system or may not be valid for the specific material or equipment.
  Status of Serial Number: The serial number may be in a status that does not allow it to be used (e.g., it may be marked as "blocked" or "inactive").
  Wrong Transaction Context: The serial number may not be applicable for the transaction you are trying to execute (e.g., trying to use a serial number for a different material type).
  Configuration Issues: There may be configuration settings in the system that restrict the use of certain serial numbers under specific conditions.
  Missing Master Data: The master data for the material or equipment associated with the serial number may be incomplete or incorrect.
  
  Solutions:
  
  Verify Serial Number: Check if the serial number you are trying to use is correct and exists in the system. You can do this by using transaction codes like IQ03 (Display Serial Number) to view the details of the serial number.
  Check Status: Ensure that the serial number is not blocked or inactive. If it is, you may need to change its status or use a different serial number.
  Review Transaction Context: Make sure that you are using the serial number in the correct context. For example, ensure that the serial number belongs to the material or equipment you are working with.
  Consult Configuration: If you suspect a configuration issue, consult with your SAP administrator or functional consultant to review the settings related to serial number management.
  Update Master Data: If the master data is incomplete, ensure that all necessary information is filled out correctly in the material or equipment master records.
  
  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) for managing serial numbers.
  Documentation: Refer to SAP documentation or help files for detailed information on serial number management and error handling.
  SAP Notes: Check SAP Notes for any known issues or patches related to serial number handling that may address your specific situation.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to your SAP support team for further assistance.