How To Fix MN899 - Scales of type &1 cannot be evaluated (interval scales only)

MN899 - Overview

• Message type: E = Error

• Message class: MN - Message class for subsequent settlement (Purchasing)

• Message number: 899

• Message text: Scales of type &1 cannot be evaluated (interval scales only)

What causes this issue?

The function module &V2& is only intended for evaluation of condition
records with interval scales (scale type D).
However, the function module was called with a condition record
internal number &V3&) with scale type &V1&. This is not permitted.

System Response

Processing is not possible.

How to fix this error?

Please use function module 'MM_ARRANG_COND_REC_EVALUATION'.

Procedure for System Administrators

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message MN899 - Scales of type &1 cannot be evaluated (interval scales only) ?

  The SAP error message MN899 indicates that there is an issue with the evaluation of scales in the context of a specific transaction or process. This error typically arises when the system encounters a scale of type that cannot be evaluated, particularly when it expects an interval scale.
  
  Cause:
  
  Scale Type Mismatch: The error usually occurs when the system is trying to evaluate a scale that is not of the expected type (interval scale). For example, if the system expects a scale that measures continuous data (like temperature or weight) but receives a nominal or ordinal scale instead, it will trigger this error.
  
  Configuration Issues: There may be a misconfiguration in the settings related to the scales in the SAP system. This could involve incorrect definitions or settings in the master data or in the configuration of the relevant module.
  Data Entry Errors: Incorrect or incomplete data entries in the relevant fields can also