How To Fix ICA02023 - Function &1 is not allowed for the field &2.

SAP Error Message - Details

• Message type: E = Error

• Message class: ICA02 - ICA Matching Engine Message Class

• Message number: 023

• Message text: Function &1 is not allowed for the field &2.

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ICA02023 - Function &1 is not allowed for the field &2. ?

  The SAP error message ICA02023 indicates that a specific function is not allowed for a particular field in the context of the operation you are trying to perform. This error typically arises in the context of configuration or data entry where certain fields have restrictions on the operations that can be performed on them.
  Cause:
  
  Field Restrictions: The field you are trying to manipulate may have restrictions based on its data type, status, or the context in which it is being used. For example, certain fields may be read-only or may not allow specific operations like updates or deletions.
  Business Logic: The business logic defined in the SAP system may prevent certain functions from being executed on specific fields to maintain data integrity or adhere to business rules.
  Configuration Issues: There may be configuration settings in the system that restrict the use of certain functions for specific fields.
  
  Solution:
  
  Check Field Properties: Review the properties of the field in question to understand its restrictions. This can often be done through the data dictionary (SE11) or by checking the field's attributes in the relevant transaction.
  Review Business Logic: If you have access to the ABAP code or configuration settings, check if there are any specific conditions or logic that restrict the function you are trying to use.
  Consult Documentation: Refer to SAP documentation or help resources for the specific module you are working with to understand the allowed operations for the field.
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting with an SAP expert who can provide insights based on the specific context of your implementation.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may want to check transaction codes related to the module you are working with (e.g., MM for Materials Management, SD for Sales and Distribution).
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide additional context.
  User Authorizations: Ensure that you have the necessary authorizations to perform the action you are attempting. Sometimes, lack of permissions can lead to similar error messages.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.