I have a workflow which is working pretty well execpt when I have a lot of approvers
So normally, I have +/- 10 approvers by workflow but I have a special one where I have more than 40 person when the workflows has to send the mail I have the following error message:
Error in tasks: Object reference not set an instance of an object
So I think it's due to my number of approvers; so any idea of what is the limit of how many approvers Nintex can handle?
Thank you in advance
Where are you getting the approvers from, SharePoint group, multi select person field in an approvers list or are you manually entering them at some point?
SharePoint has a limit of 10Bytes on a person field, but from what I've read this is only reached around 200 entries.
thar might be limited on exchange side, but it's defaulted to much higher number.
but from the error message I'd rather suspect whether you do not have a deleted or disabled account on the list, which mail address cannot be resolved for.
or whether your query doesn't return an empty element for any reason.
it returns me something
check the exact content.
as mentioned, some DB records may miss mail address which then may turn into empty collection element, or mail address need not ne in correct format (eg. an extra space), or there may be stored multiple addresses where there is expected just one.
make sure query returns addresses without a separator (comma, semicolon...) - nintex (sometimes) interprets them as a part of the address
If I have some doubloons in my mail list, can it cause any trouble?
duplicates (duplicate mail addresses) shouldn't cause any problem.
if you have the list in collection you can try to 'Remove duplicates' operation