How To Fix WW150 - Please enter a base material group or a hierarchy level

SAP Error Message - Details

• Message type: E = Error

• Message class: WW - Material group master maintenance

• Message number: 150

• Message text: Please enter a base material group or a hierarchy level

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 WW150 - Please enter a base material group or a hierarchy level ?

  The SAP error message WW150, which states "Please enter a base material group or a hierarchy level," typically occurs in the context of material management or when working with material master data. This error indicates that the system requires either a base material group or a hierarchy level to proceed with the operation you are attempting.
  Cause:
  
  Missing Input: The most common cause of this error is that the user has not entered a required field, specifically the base material group or hierarchy level, in the relevant transaction or screen.
  Configuration Issues: There may be configuration settings in the material management module that require these fields to be filled out, and if they are not, the system will throw this error.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to view or enter certain data, leading to incomplete entries.
  
  Solution:
  
  Check Input Fields: Ensure that you have filled in the required fields for the base material group or hierarchy level. If you are unsure what to enter, consult your organization's material management guidelines or documentation.
  Review Configuration: If you have the necessary access, check the configuration settings in the material management module to see if there are any mandatory fields that need to be filled out.
  Consult with IT or SAP Support: If you are unable to resolve the issue, it may be beneficial to consult with your IT department or SAP support team. They can provide insights into whether there are any system-specific configurations or issues that need to be addressed.
  User Authorization: Ensure that you have the appropriate authorizations to access and modify the material groups or hierarchy levels. If not, you may need to request additional permissions.
  
  Related Information:
  
  Transaction Codes: The error may occur in various transaction codes related to material management, such as MM01 (Create Material), MM02 (Change Material), or MM03 (Display Material).
  Material Master Data: Understanding how material master data is structured in SAP can help in resolving this error. Familiarize yourself with the different views and fields related to material groups and hierarchy levels.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its system, and there may be specific notes addressing this error.
  
  By following these steps, you should be able to identify the cause of the WW150 error and take appropriate action to resolve it.