Message type: E = Error
Message class: MPE_OAN - Operation Activity Network Messages
Message number: 305
Message text: BOM item is already assigned to logical component &1 at OA &2
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.
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.
The SAP error message MPE_OAN305 indicates that a Bill of Materials (BOM) item is already assigned to a logical component in a specific order. This error typically arises in the context of SAP's Project System (PS) or Production Planning (PP) modules when trying to assign a BOM item to a logical component that has already been assigned.
Cause: The error occurs due to the following reasons: Duplicate Assignment: The BOM item you are trying to assign is already linked to the specified logical component (e.g., a maintenance order, production order, or project). Data Integrity: SAP enforces data integrity rules to prevent multiple assignments of the same BOM item to the same logical component, which could lead to inconsistencies in planning and execution.
Solution: To resolve the error, you can take the following steps: Check Existing Assignments: Navigate to the relevant transaction (e.g., CS03 for displaying BOMs) and check if the BOM item is already assigned to the logical
Get instant SAP help. Sign up for our Free Essentials Plan.
MPE_OAN304
Unknown logical component &1 in operation activity &2
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
MPE_OAN303
Logical component assignment &1 already exists for OA &2, version &3
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
MPE_OAN306
Operation &1 is inconsistent. See long text for details.
What causes this issue? This operation has been set to be processed externally. In addition, a cross-operation relationship exists for one or more of...
MPE_OAN307
More than one BOM item was selected for log. component &1 in operation &2
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.