UpdateWithSubDeletion ContactEmployees error: DI Error: (-10) 1250000131 - You cannot remove contact person; this contact person is used in 'Sales Quotations'

Hi all,

I am building a BP2BP scenario. I am using the B1 Object atom with UpdateWithSubDeletion to do so...

Now, when updating a BP I get following error on the contactemployees:

DI Error: (-10) 1250000131 - You cannot remove contact person 'X'; this contact person is used in 'Sales Quotations'.

Can anyone help me with this? Or is is not possible to update a bp with contactemployees used in documents?

Thx,

Joeri