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About Sintel Forms
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Getting Started
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Product Updates
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Settings
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Layout
- About Layout
- Adding and Editing Linked List items using Inline, Dialog & Sintel Forms Embedded
- Adding Fields
- Creating Calculated Fields & using formulas
- Default values & custom values
- Field and Section Validation
- Linked Libraries-Using a Document/Picture Library
- Linked Lists-How to add attachments
- Sections - Tab order
- Setting field properties within a Linked List
- Using a Linked List
- Form Header and Footer
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Workflow
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Logic
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Reminders
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Basic Customisation
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Advanced Customisation
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FAQs
- FAQs
- Activating Sintel Forms on newly created tenants
- Lists and columns used by Sintel Forms
- Support and Training
- Track the usage of Sintel Forms
- Differences between the Cloud and On-Prem Versions of Sintel Forms
- Permissions used by Sintel Forms
- Permissions required to use the Sintel Forms Designer
- SharePoint Add-Ins are retiring what can you do
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How To Guides
- Add a button that opens the attachment panel
- Automatically add linked items or files
- Change the layout of Choice Fields
- Configure a cascading drop-down
- Configure Printing Options
- Debugging your forms
- Embedded Action Buttons
- Export a form template
- How to complete a form action with Power Automate
- Import a form template
- Lookup Columns: Control the sort order
- Lookup Columns: Retrieve additional columns from Lookup List
- Make Attachments Mandatory
- Set & clear field values using rules
- Share a Form
- Track the usage of Sintel Forms
- Transferring your license to another tenant
- Use Sintel Embedded Mode on a linked list
- Use a Rule to check if third party cookies are enabled
- Customising Send-From Address for Sintel Apps Emails
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Widgets
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Noteworthy Features
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Troubleshooting
- The redirect URL specified in the request does not match
- Everything is fine but we had a small problem getting your license
- "401 Unauthorized" error during form data save
- "500 internal server error" on form opening
- Activating Sintel Forms on newly created tenants
- Ad blockers and Privacy Extensions
- Attachments option missing in Sintel Forms
- Changing the Content Approval settings of a list can cause an issue with Sintel Forms
- Enabling third-party cookies
- Handling the list view threshold for the Workflow and Conversations features
- No actions appearing in the actions menu
- Sintel Forms doesn't appear to be applied to a list
- Sintel Forms not available in the ribbon menu
- Sintel Forms Save Process
- Site naming and Sintel Forms
- The remote server returned an error: (401) Unauthorized when importing a form template
- Workflow emails containing incorrect links to forms
- Workflow emails not being received by distribution lists or mail-enabled security groups
- Workflow emails not being received by SharePoint group members
- Data load error: Connection to SharePoint has been lost. Please reload the page.
- Data save error: Access denied. You do not have permission to perform this action or access this resource
- Email address of a Shared Mailbox not recognised by Sintel Forms
- Add a Customized behavior for Sintel Forms instead of enabling third-party cookies
- Export to PDF not working on SharePoint Subscription Edition
- "404 FILE NOT FOUND" when attempting to open a new form or existing form
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Code Samples
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Sintel General Info
Data load error: Connection to SharePoint has been lost. Please reload the page.
Posted
Updated
ByEoin McMahon
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Issue
When you attempt to open a form:
“Data load error: Connection to SharePoint has been lost. Please reload the page.”
Data load error
Resolution
There can be a number of reasons for this message and the resolution will vary depending on the specific scenario. The following are a number of things you can check.
- Sintel Forms requires third-party cookies to be enabled-enable third-party cookies in your browser. If you can’t enable-third party cookies then you can alternatively add a customized behavior for app.sintelforms.com
- There may be an issue with your internet connection-verify that you can access other Urls
- You may have been logged out of Microsoft 365-attempt to open any Microsoft 365 Url in another browser tab
- If you encounter this message when attempting to save a change in the Sintel Forms Designer-Open the source list in a new tab, click on the Sintel Forms Designer to launch it, and then switch back to the original tab and attempt to save again.
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