# Installed the Optimize app but I do not see any Croct field on my blocks

Asked by tomek_b on 2026-08-14. Tags: storyblok, croct-field, setup.

installed the Optimize app from the Storyblok app directory and I assumed a
Croct field would just show up on every block automatically. it did not. the
blocks look exactly the same as before.

what I already checked: the app is installed on the space, the space has a
couple of published stories, and I reloaded the editor a few times. still
nothing on the blocks. what step am I missing here

## 2 answers

### Answer from devon_lee (2026-08-15)

The field is not auto-injected, that is the missing piece. Installing the
app does not touch your blocks. You add a Croct field to a block yourself
in the block schema, then connect that field to a matching Croct slot. Do
it on the blocks you actually want to personalize.

Prereqs are just the app installed from the directory and a space with at
least one story, which you have. Once you add the field and link it, the
existing Storyblok content on that block stays as the default fallback, so
nothing changes for visitors until you build an experience on the slot.

#### Reply from tomek_b (2026-08-16)

that was it. I thought installing was the whole setup. added the field
to the hero block, linked it, showing up now. thanks

### Answer from hanna_kt (2026-08-15)

Worth knowing there are two separate listings in the app directory and
people mix them up. The Optimize app is the one you install on the space.
The Croct field plugin for block-level A/B testing inside the Visual Editor
is a distinct listing. If you only ever installed the Optimize app you may
still need the field plugin available so the field type shows up when you
edit the block schema. There is more on that in
[the Croct field plugin not showing up](/answers/storyblok-croct-field-plugin-missing).