Message type: E = Error
Message class:  SEPMH_DG - EPM HANA DG - Messages 
Message number: 054
Message text: Parent node reference was not passed to rule '&1'
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 SEPMH_DG054, which states "Parent node reference was not passed to rule '&1'," typically occurs in the context of SAP's Data Governance or similar applications where rules and data models are being processed. This error indicates that a required reference to a parent node in a hierarchical structure is missing when a specific rule is being executed.
Cause: Missing Parent Node Reference: The error usually arises when a rule is expecting a reference to a parent node in a data structure (like a tree or hierarchy) but does not receive it. This can happen if the data model is not correctly defined or if there is an issue with how the data is being passed to the rule. Incorrect Rule Configuration: The rule itself may be incorrectly configured, leading to the expectation of a parent node that is not present in the current context. Data Integrity Issues: There may be issues
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
SEPMH_DG053 Rule '&1' was called in invalid context: '&2'. '&3'.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
SEPMH_DG052 Individual GROSS_AMOUNT lambda ('&1') > Total GROSS_AMOUNT lambda ('&2')
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
SEPMH_DG055 Rule is only valid for entity node '&1', attribute(s) '&2'
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
SEPMH_DG056 Invalid Number of repetitions: &1
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.