How To Fix UCF4121 - Method &1: source assignment: incorrect item type in item &2

UCF4121 - Overview

• Message type: E = Error

• Message class: UCF4 - Messages on Reclassification

• Message number: 121

• Message text: Method &1: source assignment: incorrect item type in item &2

What causes this issue?

In step &V3& of reclassification method &V1&, you have specified item
&V2& as the source assignment. You have assigned this reclassification
method to reclassification task &V4&. In this task, you have selected
the <LS>Assets Held for Sale</> checkbox.
When you define the source assignment for this type of task in the
reclassification method, the item type depends on the following s
ettings:
If you did <ZH>not</> select the <LS>Valuation Allowance of
Assets/Liabilities</> checkbox, you should allow the assignment of the
trigger to be inherited as the source assignment.
If you selected the <LS>Valuation Allowance of Assets/Liabilities</>
checkbox in the reclassification task, the following applies:
If the processing type is <LS>Consolidation Units Held for Sale</>, you
should allow the assignment of the trigger (income statement item for
planned depreciation of assets/liabilities) to be inherited as the
source assignment.
If the processing type is <LS>Discontinued Consolidation Units</> or
<LS>Discontinued Consolidation Units Without Sale</>, you should use the
<LS>Discontinued Operations</> item from the income statement as the
source assignment.
The item type for item &V2& does not meet the above requirement.

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?

Adjust the Customizing settings for the source assignment of
reclassification method &V1& as described above by ensuring you only
define items with an appropriate item type as the source assignment.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UCF4121 - Method &1: source assignment: incorrect item type in item &2 ?

  The SAP error message UCF4121 typically indicates that there is an issue with the source assignment in a financial transaction or document. Specifically, it suggests that the item type of a particular line item does not match the expected type for the operation being performed. This can occur in various contexts, such as during the processing of financial documents, postings, or when working with specific modules like SAP Financial Accounting (FI) or Controlling (CO).
  
  Cause:
  The error message UCF4121 can be caused by several factors, including:
  
  
  Incorrect Item Type: The item type specified in the transaction does not match the expected item type for the source assignment. For example, if a line item is expected to be a cost center but is instead classified as a revenue item.
  
  
  
  Configuration Issues: There may be configuration settings in the SAP system that define which item types are valid for certain transactions. If these settings are incorrect