How To Fix AO603 - First enter the implementation start date

AO603 - Overview

• Message type: E = Error

• Message class: AO - Appropriation requests - Master data / Customizing

• Message number: 603

• Message text: First enter the implementation start date

What causes this issue?

The desired implementation date is not maintained. This date serves as
the key date for the valuation of the peliminary costing items for
preliminary costing.

System Response

Preliminary costing is not created.

How to fix this error?

Enter the desired implementation date. Then you can enter preliminary
costing for an appropriation request variant.

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 AO603 - First enter the implementation start date ?

  The SAP error message AO603, which states "First enter the implementation start date," typically occurs in the context of Asset Accounting (FI-AA) when you are trying to perform an action related to asset management without having specified the implementation start date for the asset.
  
  Cause:
  The error arises because the system requires an implementation start date to be defined before you can proceed with certain transactions or processes related to asset management. This date is crucial as it marks the beginning of the asset's lifecycle in the system and is necessary for various calculations and reporting.
  
  Solution:
  To resolve the AO603 error, you need to follow these steps:
  
  
  Access the Asset Master Record:
  
  Navigate to the Asset Master Record (Transaction Code: AS01 or AS02 for change).
  
  
  
  Enter the Implementation Start Date:
  
  In the asset master data, locate the field for the implementation start date (often found in the "Time-Dependent Data" section).
  Enter the appropriate date that signifies when the