Field filter validation exception?
Sometimes when you are editing a record in Salesforce, we see an error message like “FIELD_FILTER_VALIDATION_EXCEPTION, Value does not exist or does not match filter criteria,”.
This error appears when there is a lookup filter defined on an object and you modify it so that the update does not reflect the filter criteria.
To fix this issue, check if any lookup filters are defined in the object and make sure any modifications are adhering to the filter criteria.
To check look filters on the object, fallow the below steps.
Go to Setup -> Customize -> click on <Object name> -> Fields.
Scroll through your Fields until you find a Lookup Field.
Click on the Field and review the detail page to see if any filters exist.
Review the Filter Criteria to be sure your modifications adhere to it.