Message type: E = Error
Message class:  USMDZ3 - Nachrichtenklasse zum UI des User-Interfaces 
Message number: 245
Message text: &1 &2 Maintenance of used accounts within hierarchy is incomplete
This message is displayed when you attempt to set the <LS>Group Account
Number</> and the hierarchy contains accounts that have no reference to
a group account.
You can save your change.
Check the reference to a group account for all accounts used in the
hierarchy and enhance this, if necessary.  For this purpose, you can use
the account links in collective maintenance to branch into the single
maintenance of accounts.
You can then set the <LS>Group Account Number</> indicator.
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 USMDZ3245 indicates that there is an issue with the maintenance of used accounts within a hierarchy in the context of SAP Master Data Governance (MDG). This error typically arises when there are inconsistencies or incomplete entries in the account hierarchy that you are trying to maintain.
Cause: Incomplete Hierarchy Maintenance: The error suggests that not all required accounts or nodes in the hierarchy have been properly maintained. This could mean that some accounts are missing or not properly linked. Data Inconsistencies: There may be inconsistencies in the data that prevent the hierarchy from being saved or processed correctly.
Configuration Issues: There could be issues with the configuration of the hierarchy or the accounts that are supposed to be part of it.
Solution: Check Hierarchy Structure: Review the hierarchy structure to ensure that all required accounts are included and properly linked. Make sure that there are no missing nodes or accounts. Complete Maintenance: Go
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