another interesting question for me.
The customer used a number of SAP defined SWCVs to add lots of namespaces and interface development.
Thinking about content update I am in doubt if there is a risk with that doing regarding later SLD and SWCV content updates from marketplace.
Any idea if content updates could delete all these customer developed namespaces?
SLD content update is no issue as you will not import this SWCV again to the ESR.
What could be the reason for a SWCV update (as I know there are some for business specific purpose like provided for tax interfaces )
Probably I am thinking too much ABAP where changing SAP original reports/FMs could have this effect.