How To Fix APO_BAPI173 - For characteristic &1 in class &2 you can only select for one value

SAP Error Message - Details

• Message type: E = Error

• Message class: APO_BAPI - Message Class for APO BAPIs

• Message number: 173

• Message text: For characteristic &1 in class &2 you can only select for one value

What causes this issue?

When selecting according to characteristics, the characteristic &V1& in
class &V2& was entered several times with different values. However,
when selecting according to requirements (input nodes) only exactly one
value for each characteristic can be selected.
Example:
For the class "PAPER" there is the characteristic "LENGTH". Requirements
for the class "PAPER" can only have one characterisic value for "LENGTH"
and not several. That is, a selection for "LENGTH=1" is allowed, but not
a selection for "LENGTH=1" and "LENGTH=2" at the same time.

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 which data is to be transferred for the selection of
characteristics. If necessary, change the data so that only one value is
transferred for each characteristic of a class.

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 APO_BAPI173 - For characteristic &1 in class &2 you can only select for one value ?

  The SAP error message APO_BAPI173 indicates that there is an issue with the selection of characteristic values in a class within the Advanced Planning and Optimization (APO) module. Specifically, the error states that for the specified characteristic in the specified class, you can only select one value at a time.
  Cause:
  This error typically occurs when:
  
  Multiple Values Selected: You are trying to select multiple values for a characteristic that is defined to allow only a single value selection.
  Incorrect Configuration: The characteristic in the class may be configured to accept only one value, but the application logic or user input is attempting to select more than one.
  BAPI Usage: If you are using a BAPI (Business Application Programming Interface) to create or update data, the input parameters may not be correctly set up to comply with the characteristic's constraints.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Characteristic Configuration:
  
  Go to the classification system and check the configuration of the characteristic in question. Ensure that it is set up to allow multiple values if that is your intention.
  If it is intended to allow only one value, ensure that your input only specifies a single value.
  
  
  
  Review Input Data:
  
  If you are using a BAPI, review the data being passed to the BAPI. Ensure that you are only passing a single value for the characteristic that is causing the error.
  If you are using a user interface, check the selection criteria to ensure that only one value is selected.
  
  
  
  Modify BAPI Call:
  
  If you are calling a BAPI, ensure that the structure of the input parameters aligns with the expected input. For example, if the BAPI expects a single value, make sure you are not passing an array or multiple entries.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation for the specific BAPI or function module you are using to understand the expected input format and constraints.
  
  
  
  Testing:
  
  After making the necessary adjustments, test the changes to ensure that the error no longer occurs.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific BAPI or characteristic configuration.
  Transaction Codes: Use transaction codes like CL02 (Change Class) or CL03 (Display Class) to review and modify class characteristics.
  Debugging: If you have access to debugging tools, you can trace the execution of the BAPI to see where the error is being triggered.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.