Section One - eCommerce What is the difference between omni-channel and multi-channel retailing. There is some ambiguity with the difference between omni-channel and multi-channel retailing. If you step back and look at the root word, "multi" means many while "omni" means all. In my mind, that is the best way to explain the differences. Multi-channel retailing is the practice of selling products to customers through more than one distribution channel (e.g, in-store and online). The customer experience can be and is often different between the two channels. An example would be if a company features an eCommerce store and a brick and mortar store. At times the only similarity in selling in both places is that the name on the door is the same and the logo is similar. Omni-channel retailers seek to provide a consistent (as possible) customer experience while retailing through any number of distribution channels simultaneously. Retailers achieve the "omni-channel" designation by having a single view of the customer and product. An example is using a single database from which data is aggregated from multiple selling segments. This usually means avoids having multiple customer, product, promotion, pricing, content, etc databases for consistency and reporting of that single view. Customers are tracked simultaneously across all channels.…
All Exceptions that happen on the Magento site comes in Exception.log. Ultimately an exception happens when Magento is not able to detect the correct data to load a page or a feature. When this error happens Magento logs that in exception.log.
All Php warnings, XML-file errors and other warnings comes into System.log
The var/log folder in the site directory contains the log files along with error logs for your Magento 3rd party modules (extensions, etc). The Magento system log file (system.log) and exception log file (exception.log) are saved to the var/log folder unless you rename it from admin panel in the system>configuration with different file names.
It’s important to know what these locations are, so you can easily debug the errors. Again, exceptions are for correct data and xml, and system is more for php warnings and errors for advanced processes on the site.
If you look for these files or folder and don’t see it, then there is a chance that the log is disabled in the Admin panel. In Magento you need to the log on; You need to go to Admin -> Configuration -> Advanced -> Developer -> Log setting.
It will not bring in old information but rather start logging information from that time forward. Be careful if you plan on leaving this log process on. I’ve seen many sites that have been bloated by the log files, especially by sites with high traffic loads. If you aren’t using the log to resolve an issue I recommend turning it off.