How To Fix /PM0/AB_AT122 - Initial option is not allowed; check Customizing

/PM0/AB_AT122 - Overview

• Message type: E = Error

• Message class: /PM0/AB_AT -

• Message number: 122

• Message text: Initial option is not allowed; check Customizing

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 /PM0/AB_AT122 - Initial option is not allowed; check Customizing ?

  The SAP error message /PM0/AB_AT122 Initial option is not allowed; check Customizing typically occurs in the context of the SAP Plant Maintenance (PM) module, particularly when dealing with maintenance plans, task lists, or similar configurations. This error indicates that the system is trying to process an initial option that is not permitted based on the current configuration settings.
  
  Cause:
  
  Configuration Settings: The error usually arises from the configuration settings in the Customizing (SPRO) for the relevant area in SAP. It may be that the system is set up to disallow certain initial options for maintenance plans or task lists.
  Data Entry Issues: The user may have entered data incorrectly or selected an option that is not valid according to the defined rules in the system.
  Missing Authorizations: Sometimes, the user may not have the necessary authorizations to perform the action they are attempting, leading to this error.
  
  
  Solution:
  
  
  Check Customizing Settings:
  
  Go to the Customizing transaction (SPRO).
  Navigate