If the records needs to submit automatically then you can have workflow, if the record is ready to process the Approval process then we can have a checkbox to update and based on the update you can create the process builder that will call the Approval process. If its going to manually select the records then its not possible.
If the records needs to submit automatically then you can have workflow, if the record is ready to process the Approval process then we can have a checkbox to update and based on the update you can create the process builder that will call the Approval process. If its going to manually select the records then its not possible.
Thanks