PMW, MT 101 - one file per payment

[frivolno]

Hello
How is PAYMTYPE parameter for PMW used?
For instance, It has option 3 - for physical individual payment. I thought it makes PMW generate separate MT101 file for each payment (green line in payment proposal), but it doesn't work this way.
(I want to have unique payment media reference number for each payment to use interpretation algorithm 19 in bank statement processing afterwards)
In fact I didn't notice any differences trying different options of PAYMTYPE?
Any suggestions?

[ArvinC]

SAP doesn't allow to generate separate file down to each payment level. The lowest level is by payment method.

However, I think you can use SAP document number as the reference for the bank statement processing.

[frivolno]

It is bank requirement (UBS) - it supports only single payment MT 101 files or several logical files inside one physical file. In any case each payment must have its own header.
But as far as I understand this issue may be solved by transforming FM for event 25 FI_PAYMEDIUM_MT101_25.
But I haven't tested it yet.

[frivolno]

Yes it works.
You can create your own FM for event 25. There you define conditions (if necessary) for creating a separate physical or logical file. Then you put this FM in OBPM3.