Some parts of the subassemblies appear in the drawing nomenclature

Hi all

When you create the BOM for an assembly that contains multiple subassemblies, certain parts (fasteners or other parts) of those assemblies appear in the BOM. I have tried to isolate the subassemblies whose parts appear in the BOM, but I don't see a logical relationship...

The set used for the drawing has several configurations, but by deleting them all and keeping only the active configuration it doesn't change anything.

When creating the nomenclature, however, I choose First Level only.

Anyone have any idea what could create this problem in the nomenclature?
Thank you!

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By any chance some under assembly would not be set to promote?
This could explain why an assembly does not appear and its contents appear because the content of this subassembly then moves to the 1st level.
A link that explains this promotion:
https://help.solidworks.com/2020/French/SolidWorks/sldworks/c_examples_child_component_display.htm

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Thank you for your answer.
I checked but it doesn't seem to be that, the assemblies are well in good shape .

It's difficult to answer without having more information.
Post to us either:
A PackAndGo of the whole.
A screenshot of your assembly's BOM and tree structure
Example:


image

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Thank you!

In fact, I just realized that some subassemblies had a Decomposed mark in the nomenclature.
image

Clicking on it and choosing Restore from the BOM solved the problem.
image

Thank you for your answers

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