Same movement type but different effects in GR and GI

Hello,

I am facing some strange issue in GR/GI transactions. When I do the goods movement 501 in MB1C, material document is posted with number 49000XXXXX. And if I do the same movement 501 in MB01, material document is posted with 50000XXXX. In the table MKPF, Transaction/Event Type is WE for 501 with MB1c and WA for 501 with MB01.

Similar scenerio is occuring even in case of the movement 201.

In MIGO->Goods Receipt->Others - Material Doc number 50000XXXX - MKPF->Transaction Type is WE

In MIGO->Goods Issue ->Others - Material Doc Number 49000XXXX - MKPF->Transaction Type is WA

Because of this, we are facing problems in number ranges and output types also. Some documents created with 4 series and some with 5 series, some documents print GI slip and some print GR slip.

What could be the reason for this issue? Someone please throw some lights on this issue.

Regards,

Asik.