For App Center Partners, these overviews inform you what to expect during Development, Certification, and Support:
Enterprise (B2B apps): https://prezi.com/p/lw0qqy51zcmd/ (this does not pertain to a Triplink app integration)
eReceipt apps (B2C apps): https://prezi.com/p/ur2i1m8thynz/ (this does not pertain to a Triplink app integration)