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= Overview = Cross Linked fields provide a very powerful way of building a parent child link, of allowing other campaigns a parent form provide the contents for a parent campaignchild form. This linking type is available to all Form types.
There are two Cross Linked form question types.
* Cross Linked Basic - Form Listing* Cross Linked Basic - Form Search
The set-up is common to both, but the use is different in each case.
= Common use examples =
There are many uses for Form Listing and Form Search
{| class="wikitable"
! Type
! Title
! Scenario
|-
| Form Listing || Frequently Changing Drop Down List || The child form needs a drop down list but there are frequency changes to the contents. Instead of modifying a List - Menu type frequently the contents are CDA records in a form which can be easily modified.
|-
| Form Listing || Quick product list || A child order form needs to lists some commonly sold / purchased products. For reporting purposes the pricing of the products can change. Keeping the details in the parent listing form is easier for title changes.
|-
| Form Search || Company and Contacts link || Many people can work for a company but how do you link them? In the Contact form, you add a Form Search type. Now you can look up the parent in the Company form. In this way you can link many contacts to one company.
|-
| Form Search || Company and Opportunities link || You have many companies. You have many opportunities. You need to link specific opportunities to specific companies. In the opportunities form, add a Form Search type and link it to the parent Company form.
|}
These are just some examples. Form List is used for shorter volumes of records where Form Search can have 100s of thousands of records. Anywhere a parent child link is useful, a form cross linked question is useful.
== Function ==
A cross linked type, will allow the contents of second form to be displayed / used in a parent form.
* The listing type will provide a drop down list of all the records in the second form. If you have more than 100 options consider using the search instead.* The search type will allow a lookup to be performed on the parent form.
== Worked Scenario ==
We have a form for events. In this form, we have a field where we want to keep which customer this event is for. The challenge is that the customer list changes often. We want to be able to give this to some other team to keep up to date.
'''C.''' So we come to the point that we want in the Event form to store which customer the event is for. We could add a drop down list or similar but these are not dynamic and are not easily managed by another team. Instead we add a question into the event form of type "Basic - Campaign Form Listing" from the "Basic - Cross Campaign Linked Type" section. We call the question "Customer".
'''E.''' If however there are too many customer to display in a drop down list, you can change the type to "Basic - Campaign Form Search". This then provides a pop up lookup screen for locating the record desired rather than creating a very large drop down list. If you would like to know any more about this functionality or how to customise it, please get in touch with your account manager or use the Help Me! button at the bottom of your bxp screen when you're logging into bxp. = Further Reading =