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DMEE - Why copying a standard to bespoke DMEE tree will give different output?

I was faced with this question yesterday and it seems that few payment DMEEs will result in different output when copied into a bespoke Z* or Y* tree. Found out that some of these DMEEs have BADI implemented for them and changing the final file output according to the specific DMEE tree. So, for those who're looking for a reason why your bespoke output file doesn't match the original, do check those available BADI under *DMEE*.

Example that I did yesterday was a copied version of DK_PAYMUL_DOMESTIC. The final file has UNA header as UNA:+,? '. As much as I tried to put a constant in the DMEE tree on a bespoke copy, it won't get copied over to the output file. Found out that there is BADI implemented for that particular DMEE tree, under DMEE_BADI_01 with implementation name DMEE_DK_BADI_01. Copied that and add my bespoke DMEE into the filter and wallah, the output file matches the original.

Hope the above helps those who're stuck wondering why your bespoke copied ver…
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For my reference and probably others too in the future, here are the configurations that I have to make this thing working:
Microkeyer II configuration:

JT65-HF HB9HQX configuration:

And on my TS-590SG:
Menu 67 - 38400 Menu 69 - ACC2 Menu 70 - FRONT Menu 73 - 4  Menu 74 - 4

Displaying aprx-rf log onto 4x20 LCD display

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1. Raspberry Pi 3 (Raspberry Pi 2 will work, but below that, you need to have different kind of connection for the GPIO).
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I'm using the following diagram for my LCD connection to the GPIO lines. Ignore the temp sensor connection.

The how-to to get the LCD working can be found on the too.

A modified HD44780 driver can be found down below along with my python code.

Or download or compile your own following the thread in the following forum link:

This modified driver need to be moved into /usr/lib/arm-linux-gnueabihf/lcdproc/ directory and replacing the driver that comes with the lcdproc package…

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Here is the video made by my friend, 9W2SBD (also one of the crew). Enjoy!