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How can I upgrade ABAP + Java double-stack systems?

April 26, 2017abap double-stack Java SYSTEMS upgrade

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How can I upgrade ABAP + Java double-stack systems?

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To upgrade a double-stack system, you have to upgrade the ABAP and the Java part in parallel. This is done with the upgrade programs SAPup for ABAP and SAPJup for Java. Both programs check the system at the beginning and if they find out that it is a double-stack system they prompt you to start the other program as well, if you have not already done so. The upgrade programs SAPup and SAPJup are synchronized to achieve a minimum downtime and a smooth upgrade.