Stock Transfer and Intercompany Sales process not working together.

Hi Exparts...

Please help to solve the below unique issue:-

Intercompany sales and Stock Transfer process is not working together from single site UW00. If Stock Transfer process starts, the intercompany sales process stops, and if Intercompany Sales Process starts the STO process fails.

Under Company Code '2800' there are two plants craeted 'UW00'

and 'U001', where 'UW00' is an main plant and all inventroy will be

manatained and managed from this plant. There is another company

code '2801'. UW00 will supply the goods to plant 'U001' under STO (in

the company code '2800') and also supply to '2801' Customer under

Intercompany sales.

for STO process the sales area is "U001-45-00" and for intercaompany

sales process the sales are is "U002-75-00" (Under intercompany process

the intercompany billing to "U002-75-00" under company code '2801').

Once we have assiging the sales area for STO to plant UW00 as "U001-45-

00" the intercompany process will be stoped, and when we assiging the

intercompany sales area to Plant as 'U002-75-00" the STO Process will

be stoped.

Error Message for STO "Not possible to determine shipping data for

article 10002020".

Error Message for Intercompany Sales"Sales area is not determined"

Please help to resolved the issue.

Thanx