SAP Message UMM_CUSTOMIZING004 - You must first process all previous steps

Diagnosis
When creating an object, you attempted to skip one or more of therequired activities. For objects of this type, however, the mutualdependency between activities makes it necessary that you stick to theexact sequence of the activities.

System Response
The system calls up the activity that you last processed.

Procedure
Continue the activities in the sequence given in the list.