How To Fix ACAC020 - Enter an external object number

ACAC020 - Overview

• Message type: E = Error

• Message class: ACAC - Nachrichten FI-GL-ACAC (Accrual Accounting)

• Message number: 020

• Message text: Enter an external object number

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 ACAC020 - Enter an external object number ?

  The SAP error message ACAC020, which states "Enter an external object number," typically occurs in the context of Asset Accounting (FI-AA) when a user is trying to create or modify an asset and the system requires an external object number that has not been provided.
  
  Cause:
  The error is usually triggered when:
  
  The asset master record requires an external object number (e.g., a reference number from an external system) that has not been entered.
  The configuration settings for the asset class may require an external object number to be filled in.
  The user may be trying to create an asset without providing all the necessary information as per the configuration.
  
  
  Solution:
  To resolve the ACAC020 error, you can take the following steps:
  
  
  Check Asset Class Configuration:
  
  Go to the configuration settings for the asset class in transaction code OAOA (Define Asset Classes).
  Ensure that the field for the external object number is set up correctly and is marked as required