In some cases when replicating large repositories you may notice that there is a artifact discrepancy after a successful replication event was completed. In order to find the artifacts that are present on the source Artifactory repository and missing from the target Artifactory repository you can use the following bash script:
https://github.com/jfrog/artifactory-scripts/tree/master/replicationDiff
The github page has complete details on how to run the script and also how it reports the missing artifacts.