Message type: E = Error
Message class:  MAFWKF - Analyzer Framework: Messages for Key Figures 
Message number: 481
Message text: Filter & is not permitted, as it is a filter for portfolio hierarchies
An incorrect filter category was assigned to a procedure for single
records. The filter that was selected can be used only for the nodes in
a portfolio hierarchy.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Choose a filter of the category <ZK>Dynamic Selections</> or <ZK>Filter
Group</>.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message MAFWKF481 indicates that a filter you are trying to use is not permitted because it is related to portfolio hierarchies. This error typically arises in the context of SAP's Portfolio and Project Management (PPM) module, where certain filters are restricted due to the hierarchical nature of the data.
Cause: Invalid Filter Usage: The filter you are trying to apply is not allowed for portfolio hierarchies. This could be due to the specific characteristics of the data structure in SAP, where certain filters may not be applicable. Hierarchy Restrictions: Portfolio hierarchies have specific rules and restrictions regarding how data can be filtered. Some fields or attributes may not be allowed as filters because they do not align with the hierarchical data model.
Configuration Issues: There may be configuration settings in your SAP system that restrict the use of certain filters for portfolio hierarchies.
Solution: Review Filter Criteria: Check the filter criteria you are
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
MAFWKF480 Filter & does not exist
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
MAFWKF479 Error when searching for basic key figure in funct. mod. ACCESS_EP2_READ
What causes this issue?  It may be the case that there is no key figure for the evaluation procedure.System Response  The system issues an error messa...
MAFWKF482 Assign the same single record procedure to both final results procedure
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
MAFWKF483 Save the evaluation method before you assign it
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.