How To Fix ME457 - Sched. agmt. w. schedule lines (acct. assgt. category cannot be changed)

SAP Error Message - Details

• Message type: E = Error

• Message class: ME - Purchasing: General Messages

• Message number: 457

• Message text: Sched. agmt. w. schedule lines (acct. assgt. category cannot be changed)

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message ME457 - Sched. agmt. w. schedule lines (acct. assgt. category cannot be changed) ?

  The SAP error message ME457 indicates that there is an issue with changing the account assignment category in a scheduling agreement that has schedule lines. This error typically arises when you attempt to modify the account assignment category of a scheduling agreement that already has schedule lines defined.
  Cause:
  The primary cause of this error is that the account assignment category is linked to the specific configuration of the scheduling agreement. Once schedule lines are created, the system locks certain fields, including the account assignment category, to maintain data integrity. Changing the account assignment category after schedule lines have been created can lead to inconsistencies in the data.
  Solution:
  To resolve this error, you can consider the following approaches:
  
  
  Do Not Change the Account Assignment Category: If possible, avoid changing the account assignment category once schedule lines have been created. Instead, create a new scheduling agreement with the desired account assignment category.
  
  
  Delete Schedule Lines: If you must change the account assignment category, you can delete the existing schedule lines first. After deleting the schedule lines, you should be able to change the account assignment category. However, be cautious as this will remove any existing schedule lines and their associated data.
  
  
  Create a New Scheduling Agreement: If the existing scheduling agreement has significant data or if deleting schedule lines is not feasible, consider creating a new scheduling agreement with the correct account assignment category from the start.
  
  
  Consult Documentation or Support: If you are unsure about the implications of deleting schedule lines or creating a new agreement, consult your SAP documentation or reach out to your SAP support team for guidance.
  
  
  Related Information:
  
  Transaction Codes: You may encounter this error while using transaction codes such as ME31L (Create Scheduling Agreement) or ME32L (Change Scheduling Agreement).
  Account Assignment Categories: Familiarize yourself with the different account assignment categories in SAP, as they determine how costs are allocated and how the system processes transactions.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or updates regarding this error message.
  
  By following these steps, you should be able to address the ME457 error effectively.