How To Fix IW556 - System: field overflow during duration calculation

SAP Error Message - Details

• Message type: E = Error

• Message class: IW - Order Processing

• Message number: 556

• Message text: System: field overflow during duration calculation

What causes this issue?

You entered a number in the field <LS>Work</> that is greater than
<ZH>9999</>, and want the system to calculate the
<GL:duration>duration</>.

System Response

The system issues a warning that the calculation would lead to a field
overflow, and does not carry out the calculation.

How to fix this error?

Divide the operation, so that the calculation gives you a result
smaller than 10000.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IW556 - System: field overflow during duration calculation ?

  The SAP error message IW556, which states "System: field overflow during duration calculation," typically occurs in the context of maintenance orders or work orders when the system attempts to calculate durations that exceed the maximum allowable limits for certain fields. This can happen in various scenarios, such as when the total duration of tasks or operations exceeds the defined limits in the system.
  Causes:
  
  
  Excessive Duration Values: The most common cause is that the total duration of the operations or tasks exceeds the maximum value that can be stored in the relevant fields. For example, if the duration is calculated in hours and the total exceeds 9999 hours, it may lead to an overflow.
  
  
  Incorrect Time Entries: If there are incorrect or unrealistic time entries in the operations or tasks, it can lead to calculations that exceed the limits.
  
  
  Configuration Issues: Sometimes, the configuration settings in the system may not be set up to handle the expected duration values, leading to overflow errors.
  
  
  Data Corruption: In rare cases, data corruption in the database can lead to unexpected behavior and errors.
  
  
  Solutions:
  
  
  Review Duration Entries: Check the duration entries for the operations or tasks associated with the maintenance order. Ensure that they are realistic and within acceptable limits.
  
  
  Adjust Configuration: If the maximum allowable duration is too low for your business needs, consider adjusting the configuration settings in SAP to accommodate larger values. This may involve changing the data type or size of the fields in the database.
  
  
  Split Operations: If a single operation has an excessively long duration, consider splitting it into multiple smaller operations to avoid exceeding the limits.
  
  
  Check for Data Integrity: Run data integrity checks to ensure that there are no corrupt entries in the database that could be causing the overflow.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or patches that may address this specific error. There may be updates or fixes available that can resolve the issue.
  
  
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. They can provide more specific guidance based on your system configuration and the context of the error.
  
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like IW32 (Change Order) or IW33 (Display Order) to review the details of the maintenance orders.
  Field Definitions: Understanding the data types and limits of the fields involved in duration calculations can help in diagnosing the issue.
  User Exits and BAdIs: If custom logic is implemented in your SAP system, check for any user exits or BAdIs that might affect duration calculations.
  
  By following these steps, you should be able to identify the cause of the IW556 error and implement a suitable solution.