A question came up this morning from our newest team member @Clare Smit - What happens if a promotion is not successful?  As we've not had one that wasn't, we couldn't answer.  Out of interest, does anyone know?

I've had a few, in R11 you didn't always know that the publish wasn't successful until you did a comparison between the different environments. The issue was normally down to the three environments i.e. doing data loads in DEV and not STG or doing development changes in STG in error.

With R12 you receive an error or failed message when the publish is requested. We had to get support to do a reset and cache clear so we could do a publish. It seems to be more of a system issue when it fails in R12 rather than human error with R11.

We've had a few failed promotions in R11:

• Sometimes the data would not all be there. Usually a reset of the instance would fix it, sometimes with the clear cache option.
• A few other times the promotion got stuck. In general this was due to errors in the logic of the transforms that would get the system into a loop. On advice of Apptio we fixed the issue and then the promotion started again.
• I have not seen any of that in R12 yet, but we've had it only for a few months.