There are several reasons why this may occur. Two of the most common reasons are described below.
The link you released has expired. To protect your data, Portal links have a validation period, or time limit, that you can set when you create the shared link. You can check this limit by going to Release Control in the Portal, finding your shared link, and viewing its validation period. If you verify that the link has expired, simply go to the file or folder that you want to share and create a new link.
If you want to allow external users more time to access your link, you can extend the validation period. To do this for an existing link, go to the link’s options and click on “Change Protection Settings”. Then go to the “Retention Period” and select your desired time period. Pro plan users of SecSign Portal can select a period between 4 hours and 28 days.
Another common cause of link access issues is that you have a free Portal account and you have reached the limit of three other users who use your secured link. With a Pro plan from SecSign Portal, you can create links that allow an unlimited number of users to access them. Or, with the Free plan, you can create a new link to allow another three users to access your data. The limits to the Free plan are designed to prevent illegal file sharing and to protect you from unauthorized sharing of your links. However, if you need to allow larger numbers of users to access your links, the Pro plan is available and can be used for this purpose.