For MARC records loaded that do not have OCLC numbers, the OCLC Batchload process will set the holdings for AUM and provide an OCLC number that can be used to update the record in Aleph. Any MARC records that are batch loaded can have either an OCLC or Vendor number and this document doesn't apply to batch loaded materials. Documentation for using OCLC's Batchloading Service:
This service like many services is scheduled to be transferred to WorldShare Management Services.
You should hear back from OCLC in a day or two whether or not the file was successfully processed. If it was successfully processed, update the records in Aleph with the OCLC numbers provided in the processed file also available from PSWeb.