In some instances, attempts to configure the ArcGIS Survey123 website in an ArcGIS Enterprise deployment after the installation completes fail, and return the following error message:
Error: Invalid Portal credentials. Please check username and password and try again
Choose one of the methods below, depending on the cause, to resolve the issue.
Use a valid username and password
Use a valid username and password for Portal for ArcGIS.
Note: Check the credentials for case sensitivity. Refer to Portal for ArcGIS: Password policy for more information.
Use the correct URL for Portal for ArcGIS