Jacques-Antoine,
FYI, it appears there's a caveat - the XBO must be "created via the ESF2 framework" (text is from the "What's New 1502" documentation)
I have no idea what this is, only that when i tried to create an XBO with an action i received an error indicating it's not possible. I'm using the Cloud App. Studio for Business ByDesign, not sure if that affects it.
Anyone know what the "ESF2 framework" refers to?
