How To Fix STEP931 - Create PNAL: Nodes not defined

SAP Error Message - Details

• Message type: E = Error

• Message class: STEP - ISO 10303 STEP Mapping Messages

• Message number: 931

• Message text: Create PNAL: Nodes not defined

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 STEP931 - Create PNAL: Nodes not defined ?

  The SAP error message "STEP931 Create PNAL: Nodes not defined" typically occurs in the context of the SAP Advanced Planning and Optimization (APO) module, particularly when dealing with the creation of a Production Network Allocation (PNAL) or similar planning processes. This error indicates that the system is unable to find the necessary nodes (such as locations, resources, or other entities) that are required for the planning process.
  
  Cause:
  
  Missing Master Data: The most common cause of this error is that the required master data (like locations, resources, or other nodes) has not been defined or is incomplete in the system.
  
  Configuration Issues: There may be configuration issues in the planning area or the planning book that prevent the system from recognizing the nodes.
  Data Consistency: There could be inconsistencies in the data, such as missing links between nodes or incorrect settings in the planning hierarchy.
  Authorization Issues: Sometimes, the user may not have the necessary