When you choose an oil you do two things
1 - check the performance grade match - in this case its API SN and ILSAC GF3
2 - check the viscosity - choose the lowest first number but also inspect the manufacturer provided graph which is based on temperature of the weather you will face regularly for the next oil change distance or time.
an example is below which is provided by mercedes benz
Now after provision of such they also have their own approval rating - which in simple terms means "Your first priority should be the approved oils, the second is choosing oils complying with ACEA A3/B3 rating but with the viscosity matched according to the chart, the last is choosing an oil according to the API rating but should follow the viscosity chart too.
This is the approved list for cars with flexible service system indicator (its oil change interval can range from 8,000 km to 25,000 kms
MB 229.3 <= approval list
In simple words
if you cannot find an approved oil - choose according to ACEA rating, if you cannot find such an oil then choose according to API rating, but in all cases follow the viscosity chart.
In your toyota case - its an API SN oil with 5w30 vicosity (aka energy conserving oil) any oil meeting these requirements will work - such a chart is also provided in your cars owners manual.