Error when assigning serial no to VA41 contract

Question

Greetings.
I would like to capture serial number in my service contract @ VA41
But when I enter the serial number of a item and attempt to save, I am getting the following error.
<Green Light> Correct data via menu path Extras->TechnicalObject
<Red Light >  No TechObj assigned to item     10
Message Text
No TechObj assigned to item     10
Technical Data
Message type__________ E (Error)
Message class_________ 00 (General Basis texts)
Message number________ 001
Message variable 1____ No TechObj assigned to item
Message variable 2____      10
Message variable 3____ 
Message variable 4____ 
Message Attributes
Level of detail_______ 2 (Level of detail 2)
Problem class_________ 
Sort criterion________ 
Number________________                                                                                1
Environment Information
Item__________________ 000
The strange thing is, I am maintaining the serial no at Extras->Technical Objects at initial entry.
Here is my procedure.
1) Enter in WV order type @ VA41
2) Enter in service material with contract duration & price (PPSV)
3) Select item goto Extras -> Technical object and enter serial no.
4) Save, then error appears.
We are on ECC 6.0. This error doesnt prevent me from saving, nor does it prevent billing or any other processing.
If anyone has any idea on how I cna make this message go away your input would be appreciated.
Regards
hanarin

Answer 1

Hi Abhishek,
Now, I maintained “S” in Equipment Cat through OIS2.
And, then created a serial number “1” in IQ01 as per your guidance.
After doing all this I’m able to assign serial number “1” manually in ME51N. But, "Create Serial No. Automatically" button is missing still.
I have to assign serial no’s for 100 pc, doing this manually is not possible.
I hope you can understand the situation and guide me.
Thanks With Regards,
Dinesh Kumar V.