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DafuelDafuel 

Is it possible to create a custom Lookup field on Activity object

i want to create a new lookup field on activity object that points to my custom object

but i m not getting lookup entry when choosing the field type..

although i know we are having limits of 5 on lookup filters yet i wanna achieve this

so if there is any other way around...le me knw

Best Answer chosen by Admin (Salesforce Developers) 
bob_buzzardbob_buzzard

There's a couple of examples of Visualforce lookups on my blog at:

 

http://bobbuzzard.blogspot.co.uk/2010/09/visualforce-lookup.html

 

and

 

http://bobbuzzard.blogspot.co.uk/2011/02/layered-visualforce-lookup.html

All Answers

wt35wt35

Custom loookups for Activities are not available yet:

https://success.salesforce.com/ideaView?id=08730000000BrPdAAK

 

You can only link your activity to the custom object using "Related to" field.

 
sandeep@Salesforcesandeep@Salesforce

No unfortunately it is not possible to create custom field ( lookup type) over activity object. if you want to do it then you need to oberride detail page of record by VF page and then need to implement lookup functionality by child window and store id in text field. 
bob_buzzardbob_buzzard

There's a couple of examples of Visualforce lookups on my blog at:

 

http://bobbuzzard.blogspot.co.uk/2010/09/visualforce-lookup.html

 

and

 

http://bobbuzzard.blogspot.co.uk/2011/02/layered-visualforce-lookup.html

This was selected as the best answer
DafuelDafuel
Thanks for such a wonderful post... :) bingo man
Alexey@YoxelAlexey@Yoxel
As of Spring'15 release it is possible. But we're having trouble accessing the field via REST API.
We have actually included a Task.custom_field__c into our package but REST API's describe call does not report that field.
Has anyone experienced this?