Import and export of goods outside india

Dear All

Our Company AB  is into trading of various goods.  Recently , We have got an order to suppy  a Product to Japan. The product is only available in Canada. AB is incorporated in India

AB  has recived  in Inda advance against sale  in USD from Buyer.  AB Now placed the order from a Supplier from Canada to delivered goods directly in Japan.  AB is going to pay the supplier from India utilising the advance recieved

What are the implication under FEMA and Custom / Banks  on AB

Warm Regrds