With Lookup Helper you can automatically relate opportunity products to the account the opportunity belongs to. To Achieve this you may follow these simple steps:

  1. Create new Lookup Helper setting.
  2. Select Opportunity Product as child object.
  3. Select the 'Create New Lookup Relationship' option --> select Account for parent object --> name the new lookup field.
  4. Select the 'Relate Opportunity Product when the value in a field matched the name/id of the Account' Lookup Helper setting type.
  5. Select the opportunity lookup field (indicate by the '>' sign).
  6. Select the account lookup field.
  7. Save and run the Lookup Helper setting.