How to import suppliers from Sourcing or Legacy suppliers to Supplier Lifecycle  & Performance  (SLP)?
How to import suppliers from Sourcing or Legacy suppliers to Supplier Lifecycle  & Performance  (SLP)?
First, export the supplier organization from sourcing:
- Go to Manage > Administration > Site Manager > Data Import/Export
- Click Export tab and search for Export Supplier Organizations (CSV) 
- Click Export
Edit the files in text editor (Notepad++). Keep the required supplier data in the files and save the files (do not change the CSV file names) and .zip them. Ensure that the file you are importing is named  SupplierOrganizationExport.zip this ZIP file must contain two specific files:  
-  SupplierOrganization_Export.csv - for supplier data and,
- SupplierOrganizationOrganizationIDPart_Export.csv  – for organization ID data.  
To import the suppliers from sourcing:
- Go to Manage > SM Administration
- Data Import/Export > Type: Suppliers from Sourcing
- Browse the newly created SupplierOrganizationExport.zip file and Upload.
- While exporting suppliers from Sourcing: after downloading the .zip file from Sourcing, do not change the CSV file names, the data can be edited but the names of the files must remain the same. That naming convention is how the system differentiates the two files in it. You should also not open the files in Excel, as it wipes out leading zeroes. Instead, use a text editor (Notepad++)
- The buyersystemid domain in SupplierOrganizationOrganizationIdPart_Export.csv file contains the SystemID which will populate the ERP Vendor ID in SLP (if you enable Consider Object Id as ERP Vendor Id option).
- If you want another ID (not SystemID) to set as ERPVendorId then add a domain as sap for organization in downstream. Save the changes, export the suppliers, then use the exported files.
- You can also refer to the Manually Migrating Supplier Organization Data documentation
Supplier Lifecycle & Performance > SM Administration
Supplier Lifecycle & Performance > Supplier Lifecycle & Performance Import/Export