How To Fix RSAU188 - No source time char. assigned for reading master data from &1 (&2)

RSAU188 - Overview

• Message type: E = Error

• Message class: RSAU - Update rules

• Message number: 188

• Message text: No source time char. assigned for reading master data from &1 (&2)

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 RSAU188 - No source time char. assigned for reading master data from &1 (&2) ?

  The SAP error message RSAU188 "No source time char. assigned for reading master data from &1 (&2)" typically occurs in the context of data extraction or data loading processes, particularly when working with SAP BW (Business Warehouse) or SAP BI (Business Intelligence). This error indicates that there is a missing assignment of a source time characteristic for the specified data source.
  
  Cause:
  
  Missing Time Characteristic Assignment: The error usually arises when the data source (e.g., InfoObject, DataSource) does not have a time characteristic assigned to it. This means that the system cannot determine the time period for which the master data is being read.
  
  Configuration Issues: There may be issues in the configuration of the InfoObjects or DataSources, where the time characteristics are not properly defined or linked.
  DataSource Settings: The DataSource settings may not include the necessary time characteristics, leading to this error during data extraction.
  
  
  Solution:
  
  
  Check DataSource Configuration:
  
  Go to the DataSource in the