Essentially yes. We are trying to move to a hybrid model where we can send excel workbooks to the customer for completion, and then directly import these into the system. This would get us ~80% of the way there.

One huge upside with configuration is that it can be copied really easily. If you have a model customer that is very similar to others, you can use it as a starting point and save 99% of the work effort.

Makes sense. Did y'all try to automate any of it? I've seen situations where things are highly-configurable, and massive at the same time - mostly in the medical industry. Test plans are hard due to interactions between config being highly-complex. No sense testing all of the setups, as not all are used or would even make sense.