Message type: E = Error
Message class:  ICA02 - ICA Matching Engine Message Class 
Message number: 046
Message text: Select either data slice as a basis for item grouping.
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The SAP error message ICA02046, which states "Select either data slice as a basis for item grouping," typically occurs in the context of SAP Integrated Business Planning (IBP) or SAP Analytics Cloud (SAC) when there is an issue with the selection of data slices for item grouping in a planning view or report.
Cause: This error usually arises due to one of the following reasons: Data Slice Not Selected: The user has not selected a data slice that is required for the item grouping process. Multiple Data Slices: There are multiple data slices available, and the system requires the user to specify which one to use for the grouping.
Configuration Issues: There may be configuration issues in the planning view or report that prevent the system from determining the appropriate data slice.
Solution: To resolve the ICA02046 error, you can follow these steps: Select a Data Slice: Go to the planning view or report where the error occurred. Look for
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