Rules of AEM

 SSL handshake error while replication  While configuring the SSL between author and publish servers, for a secured data flow you want to make the replication calls also over HTTPS.  Assumption -      Author and publish servers will have working SSL and sling security check should be pass.  Error -   Replication test  failed PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target   OR    Error while sending request: javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated Cause -  This issue comes as replication agents try to find the certificates with exact name. and it ignores the wild card certificates.  Solution  -  Login to AEM , open replication agent which has the error. Edit the replication agent Go to transport  Make ssl to R elaxed . 

ERROR :-   OakAccess0000: Access denied We often observe while doing the AEM development or in live running environment we get the error code  OakAccess0000 , while running a workflow or any asset upload.  This impact the business as content author are unable to upload any content.  Error stack trace :- Javax.jcr.AccessDeniedException: OakAccess0000: Access denied  at org.apache.jackrabbit.oak.api.CommitFailedException.asRepositoryException(CommitFailedException.java:232) [org.apache.jackrabbit.oak-api:1.10.6]  at org.apache.jackrabbit.oak.api.CommitFailedException.asRepositoryException(CommitFailedException.java:213) [org.apache.jackrabbit.oak-api:1.10.6]  at org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate.newRepositoryException(SessionDelegate.java:669) [org.apache.jackrabbit.oak-jcr:1.10.6]  at org.apache.jackrabbit.oak.jcr.delegate.SessionDelegate.save(SessionDelegate.java:495) [org.apache.jackrabbit.oak-jcr:1.10.6]  at org.apache.jackrabbit.oak.jcr.session.SessionImpl$8.per