We got a requirement to change the WBS numbering while creating a project from Sales order. Commercial project inception is a method to create project via sales order. we use BADI BADI_PS_PROJECT_ID_CHANGE to change the WBS and we could not succeed. we are getting error "Object WBS Element 00000205460000020546 could not be created" . And also we need to bring few z fields from sales order header(Additional data B tab) to create project. Because those are mandatory fields to create project. What is the preferred BADI for coping this from VBAK to proj. we are now trying to pass these value while debugging. Would someone help to get resolve this error while creating project.?