Please enter a value: Field Name
This error occurs when either of the following applies.
1. You tried to add or update a field with blank, that is set as a required field in Salesforce.
2. Internal key is not specified for fields that are set for lookup relationship or master-detail relationship.
Fields set for lookup relationships or master-detail relationship have the internal key called Object ID in Salesforce.
If the Object ID is not specified, this error may occur.
[How to Avoid the Error]
Check whether the required field is left blank, and what is entered in the field.
When the error occurs in a field specified as a lookup relationship or master-detail relationship, please use either of the following methods.