The Purchase tab contains part information related to purchasing. At the top you can see all supplier links for a part. You will also find purchase price statistics.
Under Miscellaneous (Misc.) you can see the administrator and setup price - purchase (if any). Under More about Purchase you will find extra part information by using the buttons Supplier price log, Inquiry, Arrival log, Supplier invoice log, Purchase statistics and Comment
The information under this tab is partly the same as the information that you find under the Purchase tab in the Update Part procedure in the Purchase and Sales modules.
By right-clicking an opening the Info menu you can link to a number of procedures where the information about the current part then will be loaded.