This is only my opinion but I feel Advanced bank reconciliation has caused a lot of confusion. This is because Microsoft has made it very technical (very cool but a bit painful first time). Also, I feel some of the documentation is lacking in detail.
Below is my quick summary for anyone who wants to start with this topic.
To import a statement file:
Official Microsoft Links
Supported formats are very limited. But the big one is the BAI2 is very common but not all banks use it.
Good non Microsoft Links
Same as the Microsoft one but with screenshots.
http://andym62.blogspot.com.au/2014/06/ax2012-r2-import-bai2-bank-statement_30.html
For developers who want to support different file formats. I would recommend using transformation class, rather than xslt.
Follow this step by step in detail. You will want to extend on it to include additional fields etc but a very good start.
http://dawsb.blogspot.com.au/2014/06/import-bank-statement-csv-format-ax.html
To reconcile (Auto and manual)
Official Microsoft Links
http://technet.microsoft.com/en-us/library/aa572690.aspx
Good non Microsoft Links
http://andym62.blogspot.com.au/2014/06/ax2012-r2-perform-advance-bank.html
FAQ
This is a great post which talks about some consideration before turning on Advanced bank reconciliation.
http://dynamicsaxandme.blogspot.com.au/2014/08/details-to-consider-before-turning-on.html
For developers you can debug xslt as per my previous post.
http://dynamicsnavax.blogspot.com.au/2014/07/how-to-debug-xslt-transformation-using.html
If you need to write one for a different file format I would recommend a transformation class as opposed to xslt. xslt is a pain to write and debug.
This is a great link:
http://dawsb.blogspot.com.au/2014/06/import-bank-statement-csv-format-ax.html
BAI2 Issues and bugs
Because it is BAI2 don’t think it is the same for every country. Some countries might do slight different things.
In Australia – there was a mandatory field that was missing in the file, the bank number string format is different. The date I found YYYYMMDD and YYMMDD.
Lastly, this bug is very annoying to figure out. I found a KB that you must download for R3.
Next time I will try to discuss the matching rules and how they work – both the good and bad.