azurecurve follows up on their Check Remittance Run-time error ’13′ – Type Mismatch issue.
Check Remittance Run-time error ’13′ – Type Mismatch: Follow Up | azurecurve
Payables & ReceivablesInstall, Upgrade & AdminMicrosoft & the GP Ecosystem
Archived post from 2011. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.