New Customer Approval Workflow

Hi Everyone,

I have created a new custom workflow in AX 2012 R2 for new customer to pass through approval process once submitted to this workflow, till here everything is working fine.

I want to know how to stop this new customer, who is still in approval process(not completed), to stop doing any transaction, till he gets approved.

Any help on this is really appreciated.

Thanks in Advance

Sanjay Thakur