How To Fix /PM0/ABP_ACTION021 - Cannot save; enter an application number first

/PM0/ABP_ACTION021 - Overview

• Message type: E = Error

• Message class: /PM0/ABP_ACTION -

• Message number: 021

• Message text: Cannot save; enter an application number first

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 /PM0/ABP_ACTION021 - Cannot save; enter an application number first ?

  The SAP error message /PM0/ABP_ACTION021 Cannot save; enter an application number first typically occurs in the context of the SAP Plant Maintenance (PM) module or related applications where an application number is required for processing or saving data.
  
  Cause:
  This error message indicates that the system requires an application number to be entered before you can save the current transaction or data entry. The application number is often a unique identifier for a specific process, request, or record that needs to be tracked within the system.
  
  Solution:
  To resolve this error, follow these steps:
  
  
  Enter Application Number: Ensure that you have entered a valid application number in the designated field. This number is usually required for the transaction you are trying to perform.
  
  
  Check Field Requirements: Verify if the application number field is mandatory. If it is, make sure you fill it out before attempting to save.
  
  
  Review Configuration: If you believe you have entered the application