Modifying SCORM 2004 3rd Edition content to run on LMS's requiring SCORM 2004 4th Edition

Lectora publishes content in HTML, xAPI, CMI5, SCORM 1.2, and SCORM 2004 3rd Edition formats. There are some LMSs that only support SCORM 2004 4th edition. A workaround is possible by modifying the imsmanifest.xml file from 2004 3rd Edition to 2004 4th Edition. However, the additional functionality in 4th edition will not be supported. This modification functions on cloud.scorm.com where the content type is reported as SCORM 2004 4th edition. While this workaround is viable, we highly recommend investing in moving to xAPI-based content that can provide significantly better data, with little extra effort.
The steps below are a possible workaround.

Select to publish, and on the HTML tab, uncheck the Create a zip file.
On the SCORM Options tab, select to publish as 2004
After publishing is complete, navigate to the output folder.
Locate imsmanifest.xml and open it in a text editor.
Locate the section metadata as shown below, at approximately line 15
Change text from 3rd to 4th leaving all else the same. See code sample below.
Save and close the file.
Return to the file folder view, select all files in the folder, and compress (usually right mouse button, select Send to -> Compressed).
The new .zip file will be the SCORM file to upload to the LMS.

<metadata>

<schema>ADL SCORM</schema>

<schemaversion>2004 4th Edition</schemaversion>

<adlcp:location>metadata.xml</adlcp:location>

</metadata>

Reference:

Differences between SCORM 2004 3rd and 4th editions