How To Fix UCF1005 - Method step &1: Check your customizing (iteration problem)

UCF1005 - Overview

• Message type: E = Error

• Message class: UCF1 - Messages for Allocations

• Message number: 005

• Message text: Method step &1: Check your customizing (iteration problem)

What causes this issue?

At this time, the Customizing settings for method step "&V1&" are set
so that all receivers serve as senders again. Executing an allocation
may produce worthless results because the senders cannot be depleted
(the iteration is not convergent).

System Response

This is only a warning. You can still save the method for the
allocation.

How to fix this error?

In the Customizing of the method, set the indicator
<DS:DE.UC_ALC_NO_ITERATION>Deactivate Iteration</>, or
Try to limit the sender definition as much as possible to avoid this
situation (see following examples).
Example 1:
Customizing
,,Sender,,Receiver,,Trigger
Cost
Center,,,,[ ] 100-200,,,,
Cost,,,,,,,,
Element,,= 300000,,= 300000,,[ ] 100000-200000,,
Effect
The definition of the sender is not further delimited: Nothing is
specified for the sender cost centers, meaning that all cost centers
are sender cost centers. Therefore, all existing receiver cost centers
can serve as senders again. The allocation would not lead to a
meaningful result (regardless of how the distribution key is defined).
Example 2:
Customizing
,,Sender,,Receiver,,Trigger
Cost
Center,,[ ] 0-100,,[ ] 100-200,,,,
Cost,,,,,,,,
Element,,= 300000,,= 300000,,[ ] 100000-200000,,
Effect
Only a portion of the receiver cost centers (cost center 100) serves
also as senders. This allocation produces meaningful results, assuming
that the distribution is defined so that less than 50% is allocated to
receiver cost center 100.

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 UCF1005 - Method step &1: Check your customizing (iteration problem) ?

  The SAP error message UCF1005, which states "Method step &1: Check your customizing (iteration problem)," typically occurs in the context of the SAP Convergent Charging (SAP CC) or similar applications where iterative processes are involved. This error indicates that there is an issue with the configuration or customization that is causing an infinite loop or an iteration problem during the execution of a method step.
  
  Cause:
  
  
  
  Configuration Issues: The most common cause of this error is incorrect or incomplete configuration in the method step that is being executed. This could involve:
  
  Missing or incorrect parameters in the method configuration.
  Circular references in the method steps that lead to infinite loops.
  Incorrectly defined conditions that cause the method to re-evaluate itself without reaching a termination point.
  
  
  
  Data Issues: Sometimes, the data being processed can lead to unexpected behavior, such as:
  
  Invalid or unexpected input data that does not meet the expected criteria.
  Data inconsistencies that cause the method to