Sync: use one-way or two-way link to connect tables A and B. The link field shows the primary field — to surface other fields from A inside B, use linked reference.
Sync: with one-way link or two-way link, you connect tables A and B. The link field shows only the primary field — to surface other fields from A inside B, use linked reference.Aggregation: while pulling values from A into B, the linked reference field can also aggregate them — original values, deduplicated, sum, etc.
Pick a link field: only one-way / two-way link fields in the current table — linked reference depends on a link field.Pick a field to reference: only fields from the linked source table. Example: if the link field points to table A, the reference can only pick fields in A.Aggregation: