In the text filed want to check first two character must be a numeric for that configured [0-9]{2}.
1. 34L - Correct
2. 4L - Wrong
but for both records it is marking an error in the DataReviewer
Hi M D Johnson,
Data Reviewer check uses the ATL regular expression engine, so some of the metacharacters have a different meaning in ATL regular expressions., however you can achieve the results mentioned in the post using the following regular expression :
[0-9][0-9]L
For more reference please see the following help topic: Validating string values—Help | ArcGIS Desktop
Thanks,
Kumar