Q1:
When using Configuration Packages, only Global Dimension 1 and Global Dimension 2 are available as direct fields in master tables (like Vendor). The other dimensions (Shortcut Dimensions 3–8) are not stored as fields but are instead managed through the Default Dimensions table.
To populate default values for additional dimensions in vendors:
You need to import your data into the "Default Dimension" table.
In your configuration package, include the table "Default Dimension" (ID 352).
Table ID = 23 (for Vendor)
No. = Vendor No.
Dimension Code = Your Shortcut Dimension Code
Dimension Value Code = The default value you want to assign
This allows you to assign default dimensions for vendors beyond the global dimensions.
Q2:
You're correct — the General Journal Line table only exposes Global Dimension 1 & 2 by default in Configuration Packages.
For additional dimensions (Shortcut Dimensions), Business Central uses Dimension Set Entries, which are stored in a separate structure and are tied using the Dimension Set ID field.
To import these:
You need to simulate the dimension combination using the "Dimension Set Entry" table (ID 480).
Then assign the resulting Dimension Set ID back to your General Journal Line records.
This approach is a bit complex and typically handled via AL code or data migration tools.
Unfortunately, Configuration Packages don’t support loading a header-only template that retains all editable dimension fields. However:
Edit in Excel provides access to all shortcut dimensions.