P4314 Voucher Match Summariziation

In Document ID 1305052.1, it was noted that the F0411 record (AP Voucher) will be summarized based on all of the following being the same:

- GLBA (GL Bank Account)

- TXA2 (Tax Rate / Area)

- EXR2 (Tax Expl Code)

- DDJ (Due Date)

- CRC (Special Handling Code)

- PST (Payment Status Code)

- DDNJ (Due Date)

- PTC (Payment Terms Code)

- ITM (Inventory Item)

A couple of questions:

- Is ITM really a part of the summarization of F0411?  Or is it only part of F0911 summarization?  (Based on some tests I have done, even when AP summarization is off, there are no ITMs being written to F0411... only to F0911).