Message type: E = Error
Message class:  CNV_10020 - Message class for package 10020 
Message number: 606
Message text: Patterns are not allowed
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The SAP error message CNV_10020606: Patterns are not allowed typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that the system has encountered a data pattern that is not permitted in the context of the operation being performed.
Cause: Invalid Data Format: The data being imported or converted may contain patterns or formats that are not acceptable according to the target data structure or business rules. Incorrect Mapping: The mapping of source fields to target fields may be incorrect, leading to the introduction of invalid patterns. Data Validation Rules: The target system may have specific validation rules that the incoming data does not satisfy, such as restrictions on certain characters or formats.
Solution: Review Data: Check the data being imported for any patterns that may not be allowed. This includes looking for special characters, incorrect formats, or unexpected values. Adjust Mapping: Ensure
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