How To Fix /PLMI/PPE_BO028 - You cannot create assembly items with relations to headers of type &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /PLMI/PPE_BO -

• Message number: 028

• Message text: You cannot create assembly items with relations to headers of type &1

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 /PLMI/PPE_BO028 - You cannot create assembly items with relations to headers of type &1 ?

  The SAP error message /PLMI/PPE_BO028 indicates that you are trying to create assembly items that have relationships with header items of a specific type, which is not allowed in the system. This error typically arises in the context of Product Lifecycle Management (PLM) or Production Planning (PP) when dealing with bill of materials (BOM) or assembly configurations.
  Cause:
  The error is caused by attempting to create an assembly item that references a header item of a type that is not permitted. The header type specified in the error message (&1) indicates the specific type of header item that is causing the issue. This could be due to:
  
  Incorrect Item Type: The header item type you are trying to associate with the assembly item is not compatible with assembly items.
  Configuration Settings: There may be configuration settings in the system that restrict certain types of relationships between items.
  Data Integrity Issues: There may be issues with the data integrity or the way the items are defined in the system.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Header Item Type: Review the type of header item you are trying to associate with the assembly item. Ensure that it is a valid type for assembly items. You may need to refer to your organization's documentation or SAP guidelines to understand which header types are allowed.
  
  
  Modify Relationships: If the header item type is not compatible, consider modifying the relationships or using a different header item type that is allowed for assembly items.
  
  
  Review Configuration: Check the configuration settings in the SAP system related to item types and relationships. You may need to consult with your SAP administrator or a functional consultant to ensure that the settings are correct.
  
  
  Data Validation: Ensure that all relevant data is correctly defined and that there are no inconsistencies in the item definitions. This may involve checking the master data for both the assembly and header items.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for more specific guidance on the error message and the types of items involved.
  
  
  Testing: After making changes, test the creation of the assembly item again to ensure that the error has been resolved.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CS01 (Create BOM), CS02 (Change BOM), and CS03 (Display BOM) to manage BOMs effectively.
  User Roles: Ensure that you have the necessary authorizations to create and manage assembly items and their relationships.
  
  If the issue persists after following these steps, it may be beneficial to engage with SAP support or a consultant who specializes in PLM or PP to further investigate the problem.