Add custom field to MAKT to get a larger descritpion in MM01/MM02/MM03

Question

Hi, I already know how to add a new field to MARA and show/maintain it at MM01-03 transactions using this procedure (copied from another thread):
Create the append structure on the MARA table.
The SAP note 44410 describes how to add the new fields to the screen and how the updating will work.
1. Make a copy of function group MGD1to ZMGDI as stated inthe Ossnote using program COPYMGDI.
2. Goto Se38 enter program name SAPLZMGDI Click Display and goto> program-> other object---> enter screen number '0001' and add your fields to the subscreen which should apper on the the general data section of the basic data1 tab for the tcode MM01
2. Make the changes stated in SAP Note.
3. After make the changes the functional analyst will need to make some configuration changes.
4. SPRO -> Logistic General -> Material Master -> Configuring Materal Master -> Define Structure of Data Screens Sequence.
5. Select SSq = 21 then click on Subscreens select Basic DATA1
6. Enter in the new screens that were built
7. Change the row that was create putting in the program (function group program) that was created in step 2.
But now, I need to add a language dependent description to have larger material description than MAKT-MAKTX. I've added the Z field to the MAKT table, generated the subscreen and copied the PBO and PAI from the screen 1002 (which is saving the MAKTX data). But it doesn't work and I'm not sure what I have to do...

Answer 1

Solved by myself
I write here the response because I didn't found it anywhere:
When you are adding a custom field to MAKT table you have to add it to appending structres SKTEXT and DMAKT too because the standard uses them to read/write the data to MAKT. It's easy to do but hard to find out