S_CTS_ADMI Authorization issue

Hi Experts,

Every now and again a user sends me a SU53 with the error requesting access to S_CTS_ADMI field TABL. The user of this morning is trying to release a purchase order using transaction ME29N. Why would the SU53 indicate that the user want to maintain the control tables of the Change and Transport System in Production when they are trying to release a purchase order? I am running a trace ST01 but it's not helping.

Could you please help me to resolve issue.

Thanks

Pavel