0

I Have two custom objects(obj1 and obj2) and two fields(Obj1field and Obj2field) in these custom objects.Now I would like to write a validation rule in obj1, which compares the two fields.I tried the below one, but there is an error.

Enter_Required_Quanity__c >=    $ObjectType.StorageObject__c.Fields.Quantity_Left__c 

When I tried this the following error occurred.

Error: Incorrect parameter type for operator '>='. Expected Number, received Object

  • 1
    You can do the validation against two records (your current record obj1 and its parent - lookup field to obj2) – Kevan Feb 25 '17 at 10:23
  • Can you please share any steps – venkatesh Feb 25 '17 at 11:21
  • Is there any relationship between obj1 and obj2 – Samir Feb 25 '17 at 11:28
2

First of all, the Validation Rule executes upon a DML event on an object. For argument's sake, we'll assume that object is Obj1__c

So, as long as Obj2__c is a parent object (via master-detail or lookup) to Obj1__c, then the Validation Rule would look like

Enter_Required_Quantity__c > Obj2__r.Quantity_Left__c

Obj2__r is the relationship name from Obj1__c to Obj2__c

Now, if Obj2__c is not related to Obj1__c via a master or lookup relationship (parent/grandparent/great-grandparent or greatgreat-grandparent), then you can't do the Validation Rule.

Validation Rules can't look down to children nor look up and then down to siblings.

  • But here I need to click on lookup to select the record. – venkatesh Feb 27 '17 at 6:37
  • @Peeter6264 - please use the edit link on your OP to amend your question with more details as it would appear I misunderstood your question – cropredy Feb 27 '17 at 19:36

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.