Run that query in order to retreive Id and functional keys and copy the result to the Sheet
select id , Utility_Plant__r.Name ,Product__r.ProductCode,SLV48_Catalogue_Lead_Time__c from Manufacturing_Plant__c where RecordType.Name ='Shipping Plant'
3/ Functional Key & VLookup.
On the two data sheet add the functunal key :
Sheet with new Lead Time :
Functional Key is : Plant & material
Sheet with exising record :
Functional Key is : Plant & material
make sure that the plant format is on 4 figures. You can use the function "Format(A1,4)" to make sure all digit are in the key
On the Sheet with new Lead Time identify the related Manufacutring plant Id based on the Functionnal key.
4/ Update records.
Add an extra sheet that will contain only matching Manufacuring plant record.
in order to have :
Manufacuring plant Id
New Lead time
Updae SF Manufacuring plant with the above data (only Catalogue Lead Time)