Item usage determination

[Former Member]

Hello all Gurus, SAP friends,

I get quick questions on item category determination and item usage.
1- how does SAP know that the item usage must be taken into consideration during the process ? is it in the SAP programs ? Company is using "interchangeability" (FFF class) and when a sales order is created for a material managed with FFF class (through PIC01 for instance) the system determines automatically PSEL as usage. How is it done ?
2- Here is In VOV4 (table V_T184) entries.
OR NORM PSEL                 TAD        TAPS
OR NORM PSEL                 TAN        TAPS
OR NORM PSEL                 TANN     TAPS
OR NORM PSEL                 TAW       TAPS
OR NORM PSEL                 TAX        TAPS     ZPRV
OR NORM PSEL                 ZAXN     TAPS
OR NORM PSEL                 ZTAH     TAPS
OR NORM PSEL                 ZTAN     TAPS
OR NORM PSEL                 ZTAX      TAPS
OR NORM PSEL                 ZTAY      TAPS
When a sales order is created for FFF material the system determines automatically the entry corresponding to TAX - TAPS (the 6th entry). Why does system pick this particular entry and not another one ?

I'll will be pleased if you could answer to these requests.
Thanks to all.
Rgds

[Former Member]

Hello Andrea,

I think that I found the reason by checking all PSEL data and it seems that the system selects in priority the entry originally created by SAP isteslf (as shown below, only TAX entry is created by SAP, others are blank).

OR NORM PSEL TAD                        TAPS

OR NORM PSEL TAN                        TAPS

OR NORM PSEL TANN                      TAPS

OR NORM PSEL TAW                       TAPS

OR NORM PSEL TAX      SAP            TAPS      ZPRV

OR NORM PSEL ZAXN                      TAPS

OR NORM PSEL ZTAH                      TAPS

OR NORM PSEL ZTAN                      TAPS

OR NORM PSEL ZTAX                      TAPS

OR NORM PSEL ZTAY                      TAPS

So it's the only reason I see right now.

Thanks for all.

[Former Member]

Fao Andrea,

Hello,

The sales order items assigned to sales doc OR, item category group NORM (no item usage, no item cat high level filled in) are, for a standard process : TAN, TAP, TAQ, TANN, TAW, TAB, ZTAN, TAS, ZTAZ, ZGRA, TAX and ZTAM. For a material, without FFF, TAN is defaulted. 

The other entries are (no usage populated) :

OR NORM            TAC TAE

OR NORM            TAE TAE

OR NORM            TAG TAN

OR NORM            TAM TAN

OR NORM            TAN TANN ZPRV

OR NORM            TANN TANN KBN

OR NORM            TAP TAN ZPRV

OR NORM            TAQ TAE ZPRV

OR NORM            ZCTS ZUT ZPRV

OR NORM            ZGRN ZKLN ZPRV

OR NORM            ZTAB TAN ZPRV

OR NORM            ZTAG ZTAJ ZPRV

OR NORM            ZTAL ZTAJ ZPRV

OR NORM            ZTAN TANN ZPRV

OR NORM            ZTAP ZANN ZPRV

OR NORM            ZTPC ZANC ZPRV

OR NORM            ZTPG ZKLN ZPRV

Then if I check higher level item category for OR / NORM there is no entry with TAX (see extract)

SaTy ItCGr Usg. HLevItCa DfItC MItCa MItCa MItCa

OR   NORM                     TAN   TAP   TAQ   TANN

OR   NORM       TAC        TAE                   

OR   NORM       TAE        TAE                   

OR   NORM       TAG        TAN                   

OR   NORM       TAM        TAN                   

OR   NORM       TAN        TANN  ZPRV  ZTAM  TAPS

OR   NORM       TANN      TANN  KBN   ZPRV  TAPS

OR   NORM       TAP         TAN   ZPRV            

OR   NORM       TAQ         TAE   ZPRV            

OR   NORM       ZCTS        ZUT   ZPRV           

So you could understand why I'm a little bit lost as I don't understand the SAP behaviour in such a case.

Any idea ?

Thanks in advance.

Fao Cong,

Hello,

You're right, it can be managed through VD51 transaction. But in our case, there is no customer material info.

Anyway thanks for your reply.

[andrea_brusarestelletti]

Hello,

  is not possible that during the creation of the item item category TAX was choosen as an alternative, and then SAP read from table T184 this entry:

OR NORM PSEL                 TAX        TAPS     ZPRV

?

Best regards,

Andrea

[Former Member]

i remember that there is a place where you can have item usage maintained: customer-material info record (VD51), and you may have a check there

[andrea_brusarestelletti]

Hello,

1) yes the usage to be taken into account related to the process and is determined by standard program;

2) Can you show what is the structure of sales order items before and after the material substitution? Anyway, the first item category (in your case TAX) represents the higher level item category, so its determination depends on the determination of the item category of the higher level item

Best regards,

Andrea