Grouping Mode In SEPA formats

 what is the exact difference between the Mixed and Grouped Modes?

This is how the payments are getting done in Oracle EBS 12.0.6

Grouped (2 out puts generated)

Output 1

Group Header

Payment information (for supplier 1)

Transaction Information ( for supplier 1)(two invoices)

 

Output 2

Group Header

Payment information (for supplier 2)

Transaction Information ( for supplier 2) (two invoices)

Mixed (2 outputs generated )

Output 1

Group Header

Payment information (for supplier 1)

Transaction Information ( for supplier 1) (two invoices)

 

Output 2

Group Header

Payment information (for supplier 2)

Transaction Information ( for supplier 2) (two invoices)

we dont find any difference between two  grouping modes , am i missing anything?