How To Fix IAOM015 - This masking is not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: IAOM - Account Assignment Manager Messages

• Message number: 015

• Message text: This masking is not allowed

What causes this issue?

The masking you entered is not allowed.

System Response

The entry cannot be accepted.

How to fix this error?

Use valid masking or enter fixed values.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IAOM015 - This masking is not allowed ?

  The SAP error message IAOM015, which states "This masking is not allowed," typically occurs in the context of the SAP Asset Accounting (FI-AA) module. This error is related to the masking of asset values or transactions that do not comply with the system's configuration or business rules.
  Cause:
  The error can arise due to several reasons, including:
  
  
  Incorrect Configuration: The asset masking settings in the system may not be configured correctly. This could involve settings related to asset classes, depreciation areas, or transaction types.
  
  
  Business Rules Violation: The transaction you are trying to perform may violate specific business rules or policies set within the organization regarding asset management.
  
  
  Data Inconsistencies: There may be inconsistencies in the asset master data or transaction data that prevent the system from processing the request.
  
  
  Authorization Issues: The user may not have the necessary authorizations to perform the action related to asset masking.
  
  
  Solution:
  To resolve the IAOM015 error, you can take the following steps:
  
  
  Check Configuration:
  
  Review the configuration settings for asset masking in the Asset Accounting module. Ensure that the settings align with your organization's policies and requirements.
  Verify the asset class and depreciation area settings to ensure they allow the intended masking operations.
  
  
  
  Review Business Rules:
  
  Consult with your finance or asset management team to understand the business rules that govern asset transactions. Ensure that the action you are trying to perform complies with these rules.
  
  
  
  Data Validation:
  
  Check the asset master data and transaction data for any inconsistencies or errors. Correct any issues found in the data.
  
  
  
  Authorization Check:
  
  Ensure that the user attempting the transaction has the necessary authorizations. If not, work with your SAP security team to grant the required permissions.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on the IAOM015 error. This may provide additional insights into the error and its resolution.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. They can provide more detailed troubleshooting based on your specific system configuration and version.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide updates and patches that could resolve the issue.
  Transaction Codes: Familiarize yourself with relevant transaction codes in Asset Accounting, such as AS01 (Create Asset), AS02 (Change Asset), and AS03 (Display Asset), to better understand where the error occurs.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the IAOM015 error and implement a suitable solution.