you want to create "Auto TO for a specific material document generated via MIGO" which means you have some business requirement where for some of the material document system should create Auto TO upon Material document posting (so in another word it should call LT06 and create TO automatically ) nd for some of the material document it should not
if my understanding is correct then
1) in Standard SAP we don't have any such transaction code
2) you can write your own piece of code in user exit MWMTOAU1 (as suggested by Tim Lutz)
Logic can be, if you can define your business rule in one custom table then after Material document posting system should check the detail from material document and then from the custom table if both are matching then it should call the Auto TO creation program or else exit the loop
