Avaliability check and ATP check for material in CO02 tcode

Hello All,

I have a requirement where i am building a portal for WM pick list . The requirment is like i enter a production order number on the screen and gives me the material and it's corresponding components. Now the user has the option to select these components (more than one at a time ) . Now, i have provided few buttons like ATP Check, Pick component etc.

I need to check the availabilty for the selected order components from the list. If the ATP check is successful and all the parts are available, then user can continue with the WM pick process and the Pick Component button becomes active.

Does anyone has any idea on how to find the availability for the individual component and if yes please provide the steps to do it.

Thanks & Regards,

Ravi Aswani