In AutoCAD Plant 3D, when editing your Bill of Materials, if you attempt to create an Ortho BOM annotation and do not have a BOM annotation setup defined in your project, an error message displays: Project has no BOM annotations defined. A BOM annotation setup specifies a block with a BOM_ID attribute definition tag and applies to Pipe Run Components and Fasteners.
This can occur if you attempt to create a BOM annotation from a project that was created before the recently released Subscription Extension 2 was installed, but the message can also occur under other conditions.
To set up an Ortho BOM annotation see To create an Ortho BOM annotation (Project Setup) in the Plant 3D product help.
For context, see the screen captures below for setting up a BOM annotation in the Project Setup.