I have a 5-page form with 5 upload fields on form5. Uploads are stored in a database etc.
When starting the record ID is retrieved. When moving from page 1 to page 2 the existing record and previously uploaded files are deleted to prevent info being mixed.
Following this guide, I can bring form contents from form1 to form2. That works fine, but it will be lost on form3. On form3 only the contents from form 2 are transferred. I need to have the data persistent until page 5 where all data inserted will be mailed.