Unable to Access Page error when editing stage picklist value
|Knowledge Article Number||000176364|
|Description||The following error occurs when editing a stage picklist value (Setup >> Customize >> Opportunities >> Fields >> Stage >> Edit one of the picklist values)
Unable to Access Page
The value of a parameter contains a character that is not allowed or the value exceeds the maximum allowed length. Remove the character from the parameter value or reduce the value length and resubmit. If the error still persists, report it to our Customer Support team. Provide the URL of the page you were requesting as well as any other related information.
|Resolution||This issue will occur when there is a Roll-up Summary field (RSF) summarizing a currency field on the opportunity object AND the org having Advanced Currency Management (ACM) enabled. The RSF will most likely be on the account object.
Further info on how the use of currency RSFs is not supported with ACM is outlined here:
About Advanced Currency Management
So to fix the issue with the Stage picklist values the options are:
* Delete the invalid RSF
* Disable ACM
The first option would be preferable as the field is currently not doing anything anyway. We always recommend that you backup data if deleting any fields. If the field is required, then the only other option is to disable ACM.