Is it possible to serialise Events set to Currency?

While I've never tired it, I don't see why you couldn't.. the Type and Unique Event Recording settings are separate configurations. That said, I can't find any examples of people combining these....

I know that with numeric events in s.products, you need to add the passed value into the s.products notation...

s.events="event1";
s.products = "category;product1;;;event1=2,category;product2;;;event1=1";

I would suspect IF you were trying to serialize an event, you would also put it into s.products (in case you needed to pass multiple serialized events in the same call.... but I don't know if the serialization would come before the currency or after.

• event1:xyz=2.01  (I suspect this would be the correct notation, as I believe everything beyond the = is taken as a value)
• event1=2.01:xyz  (this seems like the :xyz would be treated like part of the value, and since :xyz isn't a valid currency value, I suspect that this would fail to track)

I am guessing this would be the notation:

s.events="event1";
s.products = "category;product1;;;event1:xyz=2.01,category;product2;;;event1:wqm=1.99";

But does this need to be part of s.products..... when added to s.products as a merchandising event, this is really to keep the event per product separated... but if you are talking about quotes with a quote id... if it's just passed in s.events (it will correlate to all the products without being specifically stitched to each product), for example:

s.events="event1,event2";
s.products = "category;product1;;;event1=2,category;product2;;;event1=1";

event2 correlates to BOTH product1 and product2, and right now, in a table, this would appear as:

But since I don't have practical experience on this, my suggested would be to do a controlled test on a QA suite. Make some sample calls, passing serialized currency values.... know exactly all the calls you make, then in an hour check the data and ensure its doing exactly what you expect.

How likely is your implementation to "re-track the same quote"... is adding serialization really needed, or is it added complexity for a small gain? If these tests fail, would just using currency be enough? 

You should definitely do a practical test of the data to be sure the outcome is expected, and review your needs, as you might be making it more complex than required.