To make the finished product to have the same lot number than its raw material is not something that automatically can be achieved with standard functionallity.
If this is what you want to achive… Why do you want to do so? If you want the FP to have the same batch number as the raw material, I’m thinking that you may want that for traceability purposes, but with the standard traceability function that AX has you will easily see the batch numbers used in the FP. In the example you gave, batch number ‘1’ was supposed to be created by AX or is your supplier batch? If it was created within AX maybe the last example I put below may fit you…
Batch numbers are unique for each item, so if “R” has batch number 1, this batch number is not going to be available for “F” unless you manually create and assign it
Make the FP to have the same batch number sequence as the raw material (raw material is FIFO), but this will not guarantee you that the FP is going to have the same batch number than the raw material every RAF (unless you are 100% sure that one batch of raw material is going to be completely used to manufacture one batch of the FP) in this 1 on 1 case, if you start the number sequence for the raw material at the same time of the first RAF of the FP you should have something simmilar to what you are looking for.
For instance, I have modeled for the RM to have the batch nbr group seq. as ‘XRM’ #### from 1 to 9999 tha first time you receive it AX will give lot nbr 0001. For the FP to have the batch nbr group seq. as ‘XFP’ #### from 1 to 9999 tha first time you RAF it AX will give lot nbr 0001. So both are going to have the same batch number, but the prerequisites are to start the sequence at the same time, and that on RM batch nbr is going to be depleted by every production order of FP.
Hope you understand me, good luck!