Appian Cloud - Web Service integration Standard limitations ?

Hello Appian Community,

I am currently working on several integration with other systems. Data is exposed to Appian thanks to Soap Web services.

As you may know, with Cloud installation, several properties are standard and cannot be modified ; we must design the apps in adequation with these properties (https://docs.appian.com/suite/help/19.4/Appian_Cloud_FAQ.html#can-i-configure-custom-properties-in-appian-cloud?)

What I know  :

• the maximum size for a webservicequery() response called in an expression rule is 1 MB
• Timeout of a web service node is set to 60 seconds

Several questions I have :

• Does the call web service node output has a size limit ?
• In case of lists, is there an array size limit in activity class parameters and process variables ?

Do you know where I can find more details (figures ?) about these default settings ?