Subject: error - Document has been modified or corrupted since signed!(data)
You are probably using signed controlled access sections in your form. These section will basically record a “sceal” when the document is saved. Whoever last saved the document and had access to the section will automatically “sign” the section.
If the content of the section is then modified from the backend, or by someone who is not part of the allowed editors for the section, then you get this error message, warning you that the sdection’s content was tempered with.
This is a normal behaviour.
In order not to get this message, you will need to make sure the action you are running is triggered by a user who actually has autorised access to the signed section. (For instance, by computing a dynmaic list of section editors based on your workflow status) or, you can always remove the sign option in the section.