No direct postings can be made to G/L acct. 16002000 in CoCode 1810

I am in Starter System, While creation of PR of Consumable Purchase, G/L is required, whenever, we are taking related G/L in PR, then below error is coming, "No direct postings can be made to G/L acct. 16002000 in CoCode 1810". Trying to solve with Google & now posting at Expert community. Please provide solution & find solution