How To Fix 28124 - Current parameter &1 in table/function &2 is multiple value

SAP Error Message - Details

• Message type: E = Error

• Message class: 28 - Configuration

• Message number: 124

• Message text: Current parameter &1 in table/function &2 is multiple value

What causes this issue?

In actions, procedures, preconditions and selection conditions, you
cannot use multiple-value characteristics as entry parameters in a
table call or function call. Entry parameters are all current
parameters except the parameters inferred by actions or procedures.
Current parameter &V1& in table/function call &V2& is multiple value.

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?

Current parameter &V1& cannot be used as an entry parameter in
table/function call &V2&. Correct your entry accordingly.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 28124 - Current parameter &1 in table/function &2 is multiple value ?

  The SAP error message 28124 indicates that a parameter in a table or function is expected to have a single value, but it currently has multiple values. This can occur in various contexts, such as when working with function modules, BAPIs, or when passing parameters in a report or transaction.
  Cause:
  
  
  Multiple Values Passed: The most common cause is that the parameter in question is being passed multiple values when only a single value is expected. This can happen if the parameter is defined as a single value in the function module or table but is being populated from a selection screen or internal table that contains multiple entries.
  
  
  Incorrect Data Type: The parameter may be defined incorrectly in the function module or table, leading to a mismatch between expected and actual data types.
  
  
  Logic Errors: There may be logic errors in the code that lead to the accumulation of multiple values for a parameter that should only have one.
  
  
  Solution:
  
  
  Check Parameter Definition: Review the definition of the parameter in the function module or table. Ensure that it is defined as a single value if that is the intended use.
  
  
  Debugging: Use the debugger to trace the flow of data and identify where multiple values are being assigned to the parameter. Look for any loops or data manipulations that might be causing this.
  
  
  Modify Data Handling: If the parameter is supposed to accept only a single value, ensure that the code logic correctly selects or aggregates the data to provide only one value. This might involve using READ TABLE with a TRANSPORTING clause or using aggregate functions to ensure only one value is passed.
  
  
  Use of SELECT-OPTIONS: If you are using SELECT-OPTIONS, ensure that you are handling the values correctly. You may need to use a specific index or condition to select a single value.
  
  
  Error Handling: Implement error handling to catch cases where multiple values might be inadvertently passed, and provide a meaningful message or fallback logic.
  
  
  Related Information:
  
  SAP Documentation: Refer to the SAP Help Portal for documentation on the specific function module or table you are working with to understand the expected parameter types and usage.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they have found.
  ABAP Development: If you are an ABAP developer, familiarize yourself with best practices for parameter handling, especially when dealing with internal tables and data structures.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.