Message type: E = Error
Message class:  USMDZ3 - Nachrichtenklasse zum UI des User-Interfaces 
Message number: 087
Message text: &1 &2 and "Liabilities": P+L account &3 is assigned to one or more nodes
Accounts are assigned beneath the two items <LS>Assets</> and <LS>
Liabilities</> in the hierarchy.
The completeness checks at the edition level (a) determine all balance
sheet accounts that are not assigned to these two nodes, and (b) all
profit and loss accounts that are assigned to these two nodes.
All discovered accounts are output with the respective message.
You are able to release the edition.
Check the account assignments in the hierarchy.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message USMDZ3087 typically relates to issues in the context of Master Data Governance (MDG) and specifically deals with the assignment of Profit and Loss (P+L) accounts to nodes in a hierarchy. The error message indicates that a specific P+L account is assigned to one or more nodes, which may not be allowed based on the configuration or business rules set in the system.
Cause: Account Assignment Issues: The P+L account specified in the error message is already assigned to one or more nodes in the hierarchy, which may conflict with the intended structure or rules for account assignments. Hierarchy Configuration: There may be restrictions in the hierarchy configuration that prevent certain accounts from being assigned to specific nodes. Data Governance Rules: The data governance rules defined in the MDG may not allow the assignment of the specified P+L account to the nodes in question.
Solution: Review Account Assignments: Check the assignments of the
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