I'd suggest you to use Tabs.

You could have Tab A and Tab B, and all related information on a same form.

Take a look at >>>  

This feature is available/ready for Office.365?

Thanks.

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Regard,

Van

 yes it is. It relies on formatting rules and fields' configuration options which are both available in Nintex Forms for Office 365.

 regards, Tomasz

Another way is to generate the link to second form with a unique ID in the URL : this ID will be read then save in the second form item with "fn-getquerystring" function. Then, you'll be able to link data of the two forms (ie. Two lists).

For example :

- Form A generates a unique ID   "myuniqueID"

- It shows the link to form B like "http://mysecondformURL?ID=myuniqueID"

- Form B opens and keeps the myuniqueID

You can save both forms, data will be linked by this uniqueID.

I'm fresh for this one. Could u provide further information for unique ID ?

Thanks.

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Regard,

Van