cost category identical with account number

Hi

cost category identical with account number is not enabled in CostAccounting module ->setup->parameters- cost category group…

this is a check box is not enable how can i Enable this option…

Thanks in advance

Sunil kumar

This check box will be enabled when there are no Cost Categories defined.

If any cost categories are defined - this check box will be automatically disabled.

if you want his to be enabled delete all the cost Categories.(this the logic behind it)