Busniees Transaction COC

Hi Gurus ,

I have run CKMLCP month of FEB i am getting error at the time of post-closing system asked COC bus. Transaction 

My doubt this bus. Transaction need for COGS na .At that time I mapped to COC in OBYC .

what ever I mapped for PRY GL account 524002 .i am using same GL account  524002 for  COC.

my doubt Which GL account map in COC and what are  posting key using to debit and credit.

What time COC bus. Transaction  need  please tell me and which GL map to COC.

Regards,

gopi.