How To Fix AP251 - Assignment not possible since measures are already assigned

SAP Error Message - Details

• Message type: E = Error

• Message class: AP - Investment program messages

• Message number: 251

• Message text: Assignment not possible since measures are already assigned

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

What causes this issue?

One of the following situations has occurred.
You tried to assign an appropriation request to an investment program
position.
However, the system determined that a top WBS element exists that is
assigned to the appropriation request, and a subordinate WBS element of
this top element is itself assigned to a program position.
<ZH>OR</>
You tried to assign a top WBS element to an appropriation request that
is already assigned to an investment program position.
However, the system determined that a WBS element that is subordinate
to this top WBS element in the hierarchy is already assigned to an
investment program position.
This lower-level WBS element is &V1&.
Within a WBS sub-tree that is defined by a top WBS element, only one of
the following is allowed:
<ZH>Either</> WBS elements are assigned directly to program positions.
<ZH>Or</> the top WBS element is assigned to an appropriation request,
and the appropriation request is then assigned to a program position.

System Response

The function is not carried out.
&NOTE&
If the appropriation request has "replaced by measure" status, then it
is possible that the measures assigned to the appropriation request
inherited an existing assignment to an investment program when the
status was set.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message AP251 - Assignment not possible since measures are already assigned ?

  The SAP error message AP251 ("Assignment not possible since measures are already assigned") typically occurs in the context of Asset Accounting (FI-AA) when you are trying to assign a measure (like a cost center, internal order, or other assignment objects) to an asset that already has measures assigned to it. This can happen during various transactions, such as asset acquisition, transfer, or adjustment.
  Cause:
  
  Existing Assignments: The asset in question already has one or more measures assigned, and the system does not allow for multiple assignments of the same type.
  Inconsistent Data: There may be inconsistencies in the asset master data or the assignment data that prevent the new assignment.
  Configuration Issues: The configuration settings in the Asset Accounting module may not allow for the type of assignment you are trying to make.
  
  Solution:
  
  Check Existing Assignments: Review the asset master data to see what measures are currently assigned. You can do this by navigating to the asset master record and checking the relevant tabs (e.g., Cost Center, Internal Order).
  Remove Existing Assignments: If appropriate, you may need to remove the existing assignments before making new ones. This can be done through the asset master record transaction (e.g., AS02 for changing asset master data).
  Use Different Measures: If the asset already has a measure assigned that cannot be removed, consider using a different measure for your assignment.
  Consult Configuration: If you suspect a configuration issue, consult with your SAP FI-AA configuration team to ensure that the settings allow for the type of assignment you are trying to make.
  Check for Errors: Look for any other error messages or warnings that may provide additional context about the issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as AS01 (Create Asset), AS02 (Change Asset), and AS03 (Display Asset).
  Documentation: Review SAP documentation or help files related to Asset Accounting for more detailed information on asset assignments and restrictions.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Roles and Authorizations: Ensure that you have the necessary permissions to make changes to asset assignments.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in Asset Accounting.