Hi @Ines 

Payment Type Group per Institute page is used to connect Payment Type Groups with each Payment Institute.

Payment Type Group is used to group together similar payment types. This is used in bank reconciliation process. Attributes (such as ledger item ID, bank transaction code, customer/supplier ID, customer/supplier name) can be selected for Payment Type Groups and the values in them need to be identical between cash and bank statement transactions to be selected during automatic matching.

In Payment Type Group per Institute page,  there’s an option called as ‘Automatic Matching Attributes’.

And here you can specify the attributes to be used by the system when automatic matching is performed to match cashbook and bank statement transactions. 

Hope the above explanation is clear.

Thanks and Best Regards

Madusha