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Error when trying to edit a Joint Report with Summary Formula

Date de publication: May 5, 2026
Description

We are getting the following error when editing a Joint Report in Lightning Experience:

This page has an error. You might just need to refresh it. [Cannot read properties of undefined (reading 'length')]

Screenshot of the error message displayed when editing a Joined Report with a Summary Formula in Salesforce Lightning Experience: 'This page has an error. You might just need to refresh it. [Cannot read properties of undefined (reading length)]'"  

Résolution

Try the following:

  • Disabling the Grand Total toggle on the report allows the user to Edit the report.
  • Recreate the report from scratch as an alternative if disabling Grand Total does not resolve the error.
Numéro d’article de la base de connaissances

005131017

 
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Salesforce Help | Article