SAP SD Princing Accumulate the amount of condition types in accounting document

To accumulate the amount of condition types in accounting document without affecting the pricing display in billing document.

As an illustration :-

ZPXX 3500
ZDXX 1000-
ZWXX 500-

(all condition types are shown separately in pricing view)

Journal:
Dr Vendor 2000
Cr Sales 2000 (ZPXX - ZDXX - ZWXX)

One way to do it is :-

Mark the condition types you want to group as statistical and remove the account assignment key.

Create a subtotal in your pricing procedure that will add them together and put in the account assignment key for it. This way the individual components will still display on your pricing screen but FI will only get one posting.