We recommend having your Nest login details to hand.
NOTE:
When comparing details between Sage Payroll and Nest, they must be identical. This includes capital and lower case letters, special characters, leading or trailing spaces.
To find the full error message:
Select Summary from the menu bar.
From the Auto Enrolment/Pensions section, select View Submission Errors.
The error
You need to check the contribution file you’re uploading.
The Nest header and trailer records refer to many parts of your pension file. Check the payment source name, payment date and group name you created on the Nest Portal. They have to match against the names displayed in Sage Payroll.
If the names don’t match exactly, you’ll need to change them in Sage Payroll.