The #Internal string appears in the object part mark as a temporary number for the numbering method you've chose : "With drawing number", as part of its mechanism. The workflow in this case is the following :
- You first run a numbering on the new model. All the objects will get part marks with the #Internal text.
- Then you run main part numbering, and single part numbering. At this point assemblies will be positioned on drawings that have a drawing number, and if the processes place more then one drawing per sheet - then the objects will also have a counter showing their position on the sheet.
- You re-number the model with the same method. All the objects will now loose their #Internal mark and get a proper part mark, based on the drawing they are placed plus the counter value to differentiate elements placed on the same drawing.
- After re-number, you need to check document manager to see if drawings require update in label, to match their new marks, and do it.