KB: Update Variant Parts from library
Created: March 25, 2021 | Updated: June 05, 2025
Altium Designer
After updating my schematic library the part does not get updated in the project when I run the BOM tool. On close inspection I can go into the Variants and the part to be varied is not showing the correct Part Number or Manufacturer fields. Going into the select alternative part I can confirm that the part in the Library is correct but there is no way to update the Variant listing. If I deselect it as fitted and then re-choose as a variant the data is corrected.
Solution Details
If a component that is set as an alternate part of a design variant has been changed in its library, a design update from libraries should be performed in order to reflect these changes in the design. Please perform the following steps to do this:
1 In a schematic sheet of the design, select the Tools » Update From Libraries command from the main menu.
2 In the Settings section of the Update From Library dialog that opens, make sure that the Include Variant option is enabled.
3 Set other options of the update process as required and complete the update with the Update From Library dialog.
