In merge modules, the Package Code and Merge Module GUID are separate. The Package Code is stored in the Summary Information Stream. The Module ID GUID is stored in the ModuleSignature table.

The ModuleID column has the module signature the following format: YourMergeModule.<some GUID>. This corresponds to the <some GUID> that appears in the ModuleSignature table.

The Module ID GUID is appended to all merge module GUID foreign keys. For example, if you create a component in a merge module project and look in the Direct Editor, you will see ComponentName.<some GUID>. This <some GUID> corresponds to the GUID in the ModuleSignature table.

Click the Generate GUID button below to use a new Module ID GUID.