How does one provide a "proven sales record" when applying for jobs in sales?

Question

Many listings for jobs in sales, especially outside sales, list "proven sales record" or "documentation of success" as a requirement for the job. It is understandable that they would like to see some demonstration of a candidate's abilities by way of past experience. However, this request appears unreasonable as a prior track record in sales must be from another company.

This would mean that one must show a record of another company's, possibly even a competitor's, business history that was obtained as an employee. These documents would seem to be confidential. To divulge them, even after employment has been ended, could be legally reprehensible. One could show a personal record, but there would be no means for an employer to verify it, and it would still have to contain data private to another company.

One may be able to indicate a close rate based on the number of potential clients contacted (without showing dollar amount), but this seems misleading, especially for account managers where a large portion of sales are repeat-business from clients. This also makes it difficult to account for cross-selling and up-selling.

How, then, does one show a record of sales without breaching the confidence of former employers?

Answer 1

You should have a sales portfolio and get it certified by your management or organization.

Answer 2

Proven Sales Track Record

Answer 3

This information is normally provided during the interview process. The hiring company does not want to physically see the information as much as having you explain what you did to contribute to a successful sales record. This is also given by your references as anecdotal evidence as your performance as a salesperson.