Supplements & Codes

How do I save my application/recommendation to come back later?

While filing an ISTS online form, you can save your form for later. Every time you change pages of a form, the website saves your information. Even if you are on a one-page form, you can click the tab at the screen to trigger the save function. Additionally, any time you click Submit the form saves. Don't worry! You can still come back and keep editing it until the form deadline. Clicking submit multiple time only saves the new version of the form. This will not duplicate your application.

Why does my supplement code not work?

If you received an instruction email to fill out a supplement for an applicant, and the code does not work, it is very likely that the applicant has deleted the request sent to you. Please check with the applicant to ensure that this is the case.

Also, please make sure that the error is not because of a typo, so, instead of typing it, please copy and paste it into the "Supplement Code" field.

Can I upload, mail or email a letter of recommendation?

Most recommendations are done online. If you received a request via email, the instructions on how do so so should be found therein. If the program allows recommendations to be sent by mail, please use the Cover Page found on the application, which has the address and MUST accompany the recommendation.

Do I need a supplement code or a program key?

It depends if you are an applicant or not. Applicants or students wanting to apply for a scholarship would need a program key, while recommenders, nominators and the like would need a supplement code. Our clients provide program keys for their programs on their website. Applicants generate supplement codes from their applications when applying. Don't have the program key? Send an email to with the name of the scholarship to which you want to apply. Our team will get you the key you need! Please note that a request for a list of keys or all scholarships we administer cannot be provided.

How long do I have to complete a supplement?

When you receive a supplement request email, a deadline date will be provided in red. A deadline will also be available on your home page. You have until 11:59 PM Pacific time on that date to complete the form.

How do recommendations and supplements work?

In order to offer a secure application environment, most recommendations or other supplement forms required from a third-party must be filled out via that third party's own account in the ISTS system. An applicant will request a supplement to be filled out by a nominator or recommender. Then, the recommender would have received a system-generated email asking him for his assistance which would include instructions and a supplement code.

How do I use a supplement code?

In order to connect a third-party supplement provider with the correct student, ISTS uses a supplement code system that connects you directly to the form required for your specific student. If you are filling information for multiple students, you will receive a code for each one and will need to use each one so that each student can complete their application requirements. Supplement codes are 13 characters long and contain numbers and letters. If you receive a message that your supplement code is invalid, try these solutions.

  1. Type your supplement code slowly and carefully into the Supplement Code field on your account.
  2. Check your email to make sure the student has not generated a new code for you that is now valid.
  3. Contact your applicant to ensure they still wish for your recommendation at this time. If they have changed their minds and canceled your request, it could cause your code to become invalid.
  4. If none of the options above help, please reach out to our Program Support team.

What is my supplement status?

The status of your recommendation is always available to you from your home page of your ISTS account. If you ever need to get back to the home page, click Home in the upper right of your screen. Under "Supplements" on your home page, a table will appear with all active supplement forms. If a student does not appear, you have not used their supplement code on this account. Note that if you have more than 10 supplements on your account, you will need to change pages to display further supplement items. You can organize supplements on your home page by Applicant Name, Program, Due Date, or Status. A status of Not Submitted means that all required information on the form has not been successfully submitted. Click the form name under Program to continue filling out the supplement. A status of Submitted means that all materials have been received and no further action is required for that supplement form.

How do I save my supplement information?

While you are completing a supplement, you can save the data at any time by clicking the "Submit" button. You can return to the online form through your account and update the information until the deadline for your form.