How To Fix ACE401 - Enter parameter &1 when calling up legacy data transfer

ACE401 - Overview

• Message type: E = Error

• Message class: ACE - Nachrichten zur Accrual Engine

• Message number: 401

• Message text: Enter parameter &1 when calling up legacy data transfer

What causes this issue?

Function module &V2& is not being called up correctly.

System Response

Processing cannot continue.

How to fix this error?

When calling up function module &V2&, fill parameter &V1&.

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.

ACE401 - Details

• The SAP error message ACE401, which states "Enter parameter &1 when calling up legacy data transfer," typically occurs when a required parameter for a legacy data transfer process is missing or not provided. This error is often encountered during data migration or when using specific transaction codes related to legacy data transfer.
  
  Cause:
  The primary cause of this error is that the system expects a specific parameter (denoted by &1) to be entered, but it has not been provided. This could be due to:
  
  User error: The user may have skipped entering a required field.
  Configuration issues: The system may not be properly configured to handle the legacy data transfer.
  Missing or incorrect settings in the data transfer program.
  
  
  Solution:
  To resolve the ACE401 error, you can take the following steps:
  
  
  Check Required Fields: Ensure that all required fields are filled in before executing the legacy data transfer. Look for any fields marked with an asterisk (*) or