Error when posting customer invoice

[aveev]

Hi.. I am a sap finance beginnner.
I am taking a sap training and one of the task asks me to post a customer invoice from this menu path Accounting->Financial Accounting -> Accounts Payabe -> Document Entry -> Invoice.
When I tried to do the posting, there is an error message below :

you do not have any authorization for segment SERV and function 01

I look at the help section, it says that I should add the missing authorizations for
object F_FAGL_SEG.
I tried to add this object authorization to my account, but I have no authorization to do

that. Should I contact the administrator to do this for me ?
I use
Thanks

[Al.]

Hi,

Yes, you should send this to your user admin team to resolve.

[aveev]

OK.. Al.. thanks..

[jayarreyes]

It is also much helpful to the user admin team if you run /nSU53 after you encounter the error message and sent the screenshot to them and/or step by step screenshot of what you are trying to do until the error appears so that they can replicate your issue.

hope this helps