How To Fix 28121 - Table/function does not allow inference of values

28121 - Overview

• Message type: E = Error

• Message class: 28 - Configuration

• Message number: 121

• Message text: Table/function does not allow inference of values

What causes this issue?

If a table/function in an action is not in the conditional part of an
action (after IF), the table/function is used to infer values.
The syntax check recognizes an error if such a table/function does not
allow inference of values.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Check whether the inference of values is possible.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 28121 - Table/function does not allow inference of values ?

  The SAP error message 28121, "Table/function does not allow inference of values," typically occurs in the context of SAP BW (Business Warehouse) or SAP HANA when there is an issue with data modeling, particularly when trying to infer values from a table or function that does not support this operation.
  
  Cause:
  
  Data Model Configuration: The error often arises when the data model is not properly configured to allow for value inference. This can happen if the table or function does not have the necessary relationships or keys defined.
  Missing or Incorrect Relationships: If the relationships between tables are not correctly defined, the system may not be able to infer values from one table to another.
  Function Limitations: Some functions or tables may have restrictions that prevent them from being used for value inference, either due to their design or the way they are being called.
  Data Integrity Issues: If there are inconsistencies or missing data