How To Fix /PM0/AB_AT100 - Customizing: You must specify data source name

/PM0/AB_AT100 - Overview

• Message type: E = Error

• Message class: /PM0/AB_AT -

• Message number: 100

• Message text: Customizing: You must specify data source name

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_AT100 - Customizing: You must specify data source name ?

  The SAP error message /PM0/AB_AT100 Customizing: You must specify data source name typically occurs in the context of the SAP PM (Plant Maintenance) module when there is an issue with the configuration of data sources in the system. This error indicates that a required data source name has not been specified in the customizing settings.
  
  Cause:
  
  Missing Data Source Configuration: The most common cause of this error is that the data source name has not been defined in the customizing settings for the relevant application or module.
  Incorrect Customizing Settings: There may be an issue with the customizing settings where the data source is expected but not properly configured.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access or modify the data source settings.
  
  
  Solution:
  
  
  Check Customizing Settings:
  
  Navigate to the relevant customizing transaction (usually SPRO).
  Go to the section related to Plant Maintenance or the specific area where the error is occurring.
  Ensure that