Scenario
Users may set or change the Vendor Name field under the Item Record if vendors use a different name for the item other than the Item Name. The change will have a retroactive effect. The new value of the Vendor Name/Code field will be displayed in the Vendor Name column of transactions.
Solution
Option 1:
1. Open the Item Record of Item ABC.
2. Edit the Vendor Name field and set value equal to XYZ.
3. Click Save.
Result: Pull up a related Purchase Order created in the past. Under the Items tab, Vendor Name column should now have the value equal to XYZ.
OR
Option 2:
1. Edit the Item Record of Item DEF
2. Under the Purchasing tab > Vendor sub tab > add a Preferred Vendor and set the Vendor Name to 123.
3. Under the Primary Information section, edit the Vendor Name/Code field and set value equal to UVW.
4. Click Save.
Result: Pull up related Purchase Order created in the past. Under the Items tab, Vendor Name column should have the value equal to 123. When users edit the Vendor Name/Code field of the item, related transactions would still have 123 as the value under the Vendor Name column because this is specifically set in the Purchasing tab > Vendor sub tab of the Item Record.