How To Fix RSAU508 - Arithmetical errors or conversion errors found in the start routine

RSAU508 - Overview

• Message type: E = Error

• Message class: RSAU - Update rules

• Message number: 508

• Message text: Arithmetical errors or conversion errors found in the start routine

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSAU508 - Arithmetical errors or conversion errors found in the start routine ?

  The SAP error message RSAU508 indicates that there are arithmetical or conversion errors occurring in the start routine of a data transfer process, typically in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence). This error can arise during the extraction, transformation, and loading (ETL) processes when data is being processed in a DataSource or InfoPackage.
  Causes of RSAU508 Error
  
  
  Data Type Mismatch: The data being processed may not match the expected data types defined in the InfoObject or DataSource. For example, trying to perform arithmetic operations on character fields or incompatible numeric formats.
  
  
  Null or Invalid Values: The presence of null values or invalid data (e.g., division by zero, negative values where only positive values are expected) can lead to arithmetic errors.
  
  
  Overflow Errors: If the result of an arithmetic operation exceeds the maximum limit of the data type being used (e.g., trying to store a large number in a