Material Master Extension (T-code: MM50) Issue

Hi,

I have materials created which has just BASIC DATA:1 views.

Now I am trying to extended material with help of T-code : MM50. In MM50 input screen i am populating Maintenance Status : D (MRP) and material no# and executing MM50. In output, i am getting material line ready to extend so I am selecting material and click on "Maintain Materials"

As expected it goes to MRP:1 to MRP:4 views and then asking to save and when i clicked on SAVE it goes Sales : General/Plant views and asking for mandatory fields Trans. Group & Loading Groups and so on.

Question is even though we are not selecting sales views for maintenance in initial screen of MM50, why system goes for sales views and looking for mandatory field to be maintened. Same happens for accounting views.

We are on ECC 6.0. Any help/suggestion ?

Thanks.

Regards,

Ravi.