I have extremely limited developer knowledge and trying to update a field on my Lead object from a custom object.

Lead field to update: Member_Owner_Lookup__c

Custom Object Name: CustomObject__c

Custom Object Field Name: Member_Owner__c

I would like Member_Owner_Lookup__c to get updated by Member_Owner__c

My feeble attempt gives me the error message of "Error: Compile Error: Illegal assignment from Schema.SObjectField to Id at line 16 column 15" which is the line 'lead.Member_Owner_Lookup__c = CustomObject__c.Member_Owner__c;'

Trigger is below and any help would be greatly appreciated!

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This trigger works just fine in my sandbox, but doesn't pass the test so I can upload into production. Can anyone please help?

trigger UpdateCustomeObject_Trigger on Lead (before update) {
//This trigger will associate a Custom Object record with the contact and opportunity associated to the 
//lead after it has been converted.
//The Custom Object is associated to an opportunity only if an opportunity record exist on the Lead.
    for (Integer i = 0; i < Trigger.new.size(); i++){
        if (Trigger.new[i].IsConverted == true && Trigger.old[i].isConverted == false){
            Set<Id> leadIds = new Set<Id>();
            for (Lead lead : Trigger.new) 
                leadIds.add(lead.Id);
            
            Map<Id, CustomObject__c> entries = new Map<Id, CustomObject__c>([select Contact__c, Opportunity__c, Account__c, Lead__c from CustomObject__c where lead__c in :leadIds]);        
            if(!Trigger.new.isEmpty()) {
                for (Lead lead : Trigger.new)  {
                    for (CustomObject__c CustomObject : entries.values()) {
                        if (CustomObject.Lead__c == lead.Id) {
                            CustomObject.contact__c = lead.ConvertedContactId;
                            CustomObject.opportunity__c = lead.ConvertedOpportunityId;
                            CustomObject.account__c = lead.ConvertedAccountId;
                            update CustomObject;
                            
                        }
                    }
                }
            }
        }
    }

}

I have extremely limited developer knowledge and trying to update a field on my Lead object from a custom object.

Lead field to update: Member_Owner_Lookup__c

Custom Object Name: CustomObject__c

Custom Object Field Name: Member_Owner__c

I would like Member_Owner_Lookup__c to get updated by Member_Owner__c

My feeble attempt gives me the error message of "Error: Compile Error: Illegal assignment from Schema.SObjectField to Id at line 16 column 15" which is the line 'lead.Member_Owner_Lookup__c = CustomObject__c.Member_Owner__c;'

Trigger is below and any help would be greatly appreciated!

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