Message type: E = Error
Message class:  TU - Billing/Scheduling/Budget Billing 
Message number: 509
Message text: Parameter &1 from function module &2 does not contain data
When calling up function module &V2& parameter &V1& was transferred
without data.
Data for this paramter is required to execute the function module
correctly.
INCLUDE ISU_VERARB OBJECT DOKU ID TX
If this error occurs in an SAP program:
Make a note of the message and data constellation relating to the
error.
Create an error message.
If you use this function module in one of your programs you must
transfer the corresponding values into parameter &V1& when calling up
the function module.
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.
The SAP error message TU509 indicates that a parameter from a specific function module does not contain any data. This can occur in various scenarios, often related to data retrieval or processing within the SAP system. Here’s a breakdown of the potential causes, solutions, and related information for this error: Causes: Missing Data: The parameter specified in the error message may not have been populated due to missing or incomplete data in the database. Incorrect Function Module Usage: The function module may be called incorrectly, or the parameters passed to it may not be valid or complete. Data Selection Criteria: The selection criteria used to retrieve data may be too restrictive, resulting in no data being returned.
Configuration Issues: There may be configuration issues in the related modules or settings that prevent data from being fetched correctly. Authorization Issues: The user may not have the necessary authorizations to access the data, leading to empty results. Solutions: Check Data
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