How To Fix CNV20201383 - Incorrect rule! Mask rule instead of prefix rule. &1;&2;&3;&4

CNV20201383 - Overview

• Message type: E = Error

• Message class: CNV20201 -

• Message number: 383

• Message text: Incorrect rule! Mask rule instead of prefix rule. &1;&2;&3;&4

Self-Explanatory Message

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CNV20201383 - Details

• The SAP error message CNV20201383 indicates that there is an issue with the data conversion rules being used in a specific context, likely related to a data migration or transformation process. The message suggests that a "mask rule" is expected instead of a "prefix rule." 
  
  Cause:
  This error typically arises in scenarios where data transformation rules are defined incorrectly. Specifically, it indicates that the system is expecting a masking rule (which is used to format or transform data) but has encountered a prefix rule (which adds a prefix to the data). This mismatch can occur due to:
  
  Incorrect Configuration: The rules defined in the data migration or transformation process may not align with the expected format.
  Data Mapping Issues: The mapping of source data to target data may have been set up incorrectly, leading to the application of the wrong type of rule.
  Version or Compatibility Issues: If there are updates or changes in