Add two letter of Gurantee request to po

How to add two letter of guarantee request to single purchase order in ax 2012. ?

Please help.

Thank you

Does this question really belongs to the Developer forum?

Provide two Bank facility to single Po

I have to customize Bank LG Request Form so that we can submit two request for letter of Agreement.

I added new button for request & add new form to that button. when I click on ‘ok’ submit button,I got error

‘origin document already have record of letter of agreement.’

so how can I add next record to solve this error ?