How To Fix FDT_EXPRESSIONS624 - Aggregation function and DB fieldname is initial

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_EXPRESSIONS - Formula & Derivation Tool: Expressions

• Message number: 624

• Message text: Aggregation function and DB fieldname is initial

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS624 - Aggregation function and DB fieldname is initial ?

  The SAP error message FDT_EXPRESSIONS624 typically indicates an issue related to the use of aggregation functions in a context where the database field is empty or not initialized. This error often arises in the context of SAP Fiori or SAP S/4HANA applications that utilize the FDT (Field Data Tool) for data processing and reporting.
  Cause:
  
  Empty Database Field: The error occurs when an aggregation function (like SUM, AVG, COUNT, etc.) is applied to a database field that is empty or has no initial value. This can happen if the field is not populated in the database or if the data retrieval logic does not return any records.
  Incorrect Data Model: The data model may not be correctly defined, leading to situations where the aggregation function is applied to fields that do not have valid data.
  Filter Conditions: If there are filter conditions applied that result in no records being returned, the aggregation function will not have any data to operate on.
  
  Solution:
  
  Check Data Population: Ensure that the database field being aggregated has data. You can do this by querying the database directly to see if there are any records with values in the relevant field.
  Review Aggregation Logic: Verify the logic where the aggregation function is applied. Ensure that it is being used in the correct context and that the field being aggregated is appropriate for the operation.
  Modify Filter Conditions: If applicable, review and adjust any filter conditions that may be limiting the data set to ensure that records are being returned for aggregation.
  Default Values: If the field can be empty, consider implementing default values or handling cases where the field is empty to avoid the error.
  Debugging: Use debugging tools in SAP to trace the execution and identify where the aggregation function is being called and why the field is empty.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common errors.
  Documentation: Review the documentation for the specific SAP module or application you are working with to understand how aggregation functions are expected to behave.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can provide insights or solutions.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.