we're thinking of moving from 1.9 to magento 2 in the future. I'd like to estimate the mass of work necessary for the upgrade. I cannot though find any information on how much the SOAP API was changed? Do we need to rewrite everything that uses the API in 1.9 (product sync, order import etc)? And are there significant changes in the data structures:
- API operations (names, parameters?) have changed i guess
- Objects and fields changed?
- Object relations changed?
If you have any hint where to look, would be greatly appreciated. Otherwise i would need to examine each API operation we're using, if its still (remotely) compatible. (at the moment we're using the SOAP API v2 in Magento 1.9)