Use
System-guided transfer order processing in the RF solution supports two different sort possibilities for the transfer orders:

Both options can be used in the following transactions, but we strongly recommend that you implement the user exit only in the interleaving transactions. In the other system-guided transactions, the sorting defined in the user exit is not reflected properly in the
RF monitor.
Procedure: Sorting Without a User Exit
In the system-guided RF transactions, if you do not define a user exit, the system selects your transfer orders by priority and then by creation date and time.
Procedure: Sorting by Different Sort Criteria with the Help of a User Exit
Use the user exit function EXIT_SAPLLMOB_061:
To use the user exit, use the enhancement name MWMRFSSG.

As an additional selection criterion, you want the system to select a transfer order for picking with a source storage bin close to the destination storage bin of the transfer order for putaway executed before.

If you do not define your own user exit in this function, the system selects the transfer order for picking only according to the queue assignment and the standard sorting mentioned above.
The function returns the transfer order number.