WM LT04 FIFO not respected VS LT01

Hello Experts,

I am having some problems with the FIFO implemented. Here is my scenario:

• I have 4 handling unit on the same storage bin
• Each handling unit has the exact same material
• Each handling unit has the exact same batch number
• Each handling unit has the exact same quatity of the material
• The last placement date is the same
• The last placement time varies

HU Material Batch Last placement date Last placement time A X Y 24.07.2019 8:10:01 B X Y 24.07.2019 8:12:01 C X Y 24.07.2019 9:16:00 D X Y 24.07.2019 9:19:00

When using transaction LT01 to create a TO, the handling unit A is being proposed. This is working perfectly.

However, when we are using transaction LT04, the handling unit C is being proposed instead of A.

Why is the FIFO working differently on both transactions? I am missing something? Is there an OSS note talking about this issue?

Regards

Shabir Ismail